Introduction
India’s rooftop solar sector has grown explosively in recent years. The PM Surya Ghar: Muft Bijli Yojana, launched in February 2024, had already brought ten lakh homes onto rooftop solar within roughly a year of launch, backed by collateral-free loans and central subsidies, with a national target of one crore households.[1] As panels multiply across the terraces and rooftops of Indian cities — dense, vertically developing, and increasingly crowded — a familiar dispute is becoming more common: a household installs solar panels, a neighbour later raises a wall, adds a floor, or constructs a building that throws the panels into shadow, and output falls. The question that follows is whether Indian property law gives the solar owner any legal claim against that neighbour.
India inherited its answer to this question, in large part, from English law but inherited it in a codified, more rigid form that predates solar technology by well over a century. The governing statute, the Indian Easements Act, 1882, was drafted to protect windows, not photovoltaic modules, and its requirements sit awkwardly against the practical realities of a rooftop solar boom driven by central subsidy schemes rather than decades of settled enjoyment. This article examines what protection, if any, Indian law currently offers a solar owner whose sunlight is blocked by a neighbour’s construction, how Indian courts have interpreted the relevant provisions, and what gaps remain as India pursues its renewable energy targets.
The Statutory Starting Point: The Indian Easements Act, 1882
No Natural Right to Light
As in England and the United States, Indian law does not treat access to sunlight as a natural incident of land ownership. A landowner generally has the right to build on their own land as they see fit, subject to municipal building regulations, and a neighbour cannot object merely because the construction reduces the amount of light or air reaching their property.[2] Any protection a landowner enjoys over light crossing a neighbour’s land must be established as an easement — a specific, limited, non-possessory legal right recognised under the Act.
Section 15: The Prescriptive Right to Light and Air
Section 15 of the Indian Easements Act, 1882 provides the primary route by which a right to light can be acquired. Where the access and use of light to an opening in a building has been “peaceably enjoyed” as an easement, openly, and as of right, without interruption, for twenty years, the right becomes absolute — that is, it is treated as having been legally acquired regardless of how it originated.[3] Where the servient land is government-owned, the required period of uninterrupted enjoyment is extended to thirty years.[4] Section 5 of the Act classifies this right to light as a “continuous” easement, because its enjoyment does not require any repeated act by the person benefiting from it, and the Act’s own illustrations describe it as “a right annexed to B’s house to receive light by the windows without obstruction by his neighbour A.”[5]
This is, in substance, the same statutory architecture the Prescription Act 1832 created in England, and it carries the same conceptual foundation: the right protects light passing through defined openings — windows — in a building, not the general receipt of sunlight across a surface. India’s colonial-era easements law describes the paradigm case explicitly in terms of “windows,” reflecting the same aperture-based thinking found in the English doctrine of ancient lights.[6]
The Case Law Standard: Actionable Nuisance, Not Mere Diminution
Indian courts have consistently held that a reduction in light is not, by itself, enough to succeed in a right-to-light claim — even where a recognised easement exists. The obstruction must be substantial enough to constitute what is legally termed an “actionable nuisance.” Courts applying this standard have held that the relevant test is whether the diminution interferes materially with the physical comfort of the occupant, or whether it renders the property unfit for the ordinary purposes of habitation or business for which it has been used — not merely whether the amount of light or air has been somewhat reduced.[7] Calcutta High Court authority holds that obstruction in cases outside the strict easement framework must similarly rise to the level of an actionable nuisance before a court will intervene, and the Supreme Court’s articulation of actionable nuisance in Rafat Ali v. Sugni Bai — requiring an unlawful act in relation to property resulting in damage — has been applied by courts assessing right-to-light disputes generally.[8]
The pattern recurs across the reported decisions: in Mt. Alifannessa v. Ali Akbar, a plaintiff sought a declaration of an easement of light and air and a mandatory injunction restraining construction that would obstruct several windows on her property, and the court examined in detail which specific windows were genuinely affected before granting relief.[9] In Kasturi Lal v. Krishan Chand, the dispute similarly turned on whether proposed construction would cause a “substantial reduction” in the plaintiffs’ right to receive light and air sufficient to amount to a nuisance, with the court noting that if the building were erected and ventilators closed off, the rooms would become dark.[10] In In re Reba Samanta, the Calcutta High Court reaffirmed that ordinarily every landowner has a right to construct on sanctioned plans without interruption, and that a plaintiff seeking to restrain such construction must establish actionable nuisance with specific particulars — general assertions of reduced light are not sufficient.[11]
The consistent judicial approach, in other words, gives considerable deference to a neighbour’s right to build, and requires the party alleging interference to clear a genuinely high evidentiary bar.
Why This Framework Struggles With Solar Panels
Three structural features of Indian easements law make it a poor fit for protecting rooftop solar installations specifically.
The Aperture Problem
Section 15 and its accompanying illustrations frame the right to light around openings in a building — windows, in the Act’s own language.[12] A solar panel, like its English and American counterparts discussed in comparative literature on this subject, is not a window. It is a surface mounted on a roof or terrace that captures ambient light across a wide range of angles and converts it directly into electricity; it does not admit light into an enclosed space through a defined aperture.[13] Indian courts have not yet had occasion to rule on whether a solar collector could be treated as an “opening” for the purposes of Section 15, but the statutory language, drafted in 1882 with no reference to anything resembling a solar installation, offers little textual basis for such an extension without legislative amendment or a significant act of judicial interpretation.
The Twenty-Year Bar
Even setting the aperture problem aside, Section 15’s twenty-year prescriptive period is a severe practical obstacle for the present generation of solar adopters. India’s major rooftop solar expansion is recent — driven substantially by the PM Surya Ghar scheme launched in 2024 and the MNRE’s Rooftop Solar Phase II programme.[14] A household that installed panels in the last one, five, or even ten years has not come close to accumulating the twenty years of open, uninterrupted, as-of-right enjoyment that Section 15 demands before any easement becomes legally absolute. Unlike a statutory solar easement in the American style, which can be created immediately by express written agreement between neighbours, Section 15 offers no mechanism for a newly installed system to acquire protected status quickly — it can only ripen slowly, if at all, and only if the specific factual and legal requirements of a continuous, apparent easement are otherwise met.
No Statutory Solar Easement Regime
Unlike roughly three dozen American states, which have enacted dedicated statutory schemes allowing landowners to create and record express solar easements defining a protected three-dimensional “skyspace” over a neighbour’s land, India has no equivalent legislation.[15] The Indian Easements Act does permit express easements to be created by grant or agreement between neighbouring owners under general principles,[16] so two neighbours are, in principle, free to contract for a right to unobstructed sunlight over a defined area — but there is no purpose-built statutory template, no standard mechanism for describing solar angles and hours in a legally precise way, and no dedicated recording regime analogous to what American solar easement statutes provide. In practice, this leaves Indian solar owners to rely on freely negotiated contracts, with all the drafting uncertainty and enforcement difficulty that implies, or on the uncertain, slow-ripening protection of Section 15.
Beyond the Easements Act: General Nuisance Law and the Specific Relief Act
Indian case law suggests that a claim for interference with light is not necessarily confined to the strict prescriptive framework of the Easements Act. Courts have indicated that the underlying proposition — that a right to light cannot be acquired outside the provisions of the Act — is qualified in certain circumstances, and general tort principles of nuisance may independently ground relief where a genuinely actionable interference is shown, distinct from a formally established Section 15 easement.[17] Where such a claim succeeds, the remedy typically available is an injunction under the Specific Relief Act, 1963 — Section 38 of which allows a court to grant a perpetual injunction to prevent the breach of an obligation existing in favour of the applicant, whether that obligation arises expressly or by implication of law.[18]
This general nuisance route offers a theoretical parallel to the American path traced through Prah v. Maretti in Wisconsin, where private nuisance doctrine was extended to protect a solar energy user’s sunlight independent of any formal easement.[19] However, no reported Indian decision has yet applied this reasoning specifically to a rooftop solar dispute, and the demanding “actionable nuisance” threshold applied in the reported light-and-air cases — requiring interference serious enough to render a property genuinely unfit for its ordinary use — sets a considerably higher bar than the balancing-of-interests test Prah introduced for solar-specific claims in Wisconsin. An Indian solar owner attempting this route today would be arguing largely on first principles, with no directly applicable precedent to rely on.
The Installation Side: Policy Support Without a Shading Remedy
As in Germany and the European Union, the thrust of India’s recent legal and policy energy has gone toward clearing barriers to installing rooftop solar, rather than protecting sunlight already being captured against a neighbour’s subsequent construction.
The PM Surya Ghar: Muft Bijli Yojana provides central subsidies and collateral-free loans for residential rooftop systems up to 3 kW, alongside net metering arrangements administered by state electricity regulatory commissions, and aims to reach one crore households.[20] MNRE’s operational guidelines for the scheme direct site assessors evaluating government buildings to identify “shadow-free areas” as part of the initial feasibility assessment before a system is installed[21] — a sensible planning step, but one that addresses only the moment of installation, offering no protection once a system is operating and a neighbour later builds nearby. State-level regulatory commissions, such as Rajasthan’s RERC, primarily regulate net metering, renewable purchase obligations, and subsidy administration — matters of energy regulation rather than private property rights between neighbours.[22]
Notably absent from this regulatory picture is any Indian equivalent of Germany’s 2024 reform, which shifted the burden of proof onto landlords or co-owners seeking to block a tenant’s balcony solar installation.[23] In India, residents of apartment complexes and housing societies frequently face restrictions imposed by resident welfare associations (RWAs) or co-operative housing society bylaws on rooftop and terrace access, and there is no dedicated statutory override comparable to the German reform, or to the American statutes that void covenants restricting solar installation.[24] This is a genuine gap: a substantial proportion of India’s urban population lives in apartment buildings where the practical ability to install solar, let alone protect it once installed, depends heavily on society consent that current law does not clearly regulate in the solar owner’s favour.
Comparative Observations
Placed alongside the English and American positions, the Indian framework displays a familiar pattern with a distinctly Indian variation. Like England, India inherited an aperture-based, prescription-dependent right to light, and that inheritance creates the same conceptual mismatch with solar technology described in the English context — a solar panel is not a window, whatever amount of light it needs.[25] Like the United States before Prah v. Maretti, Indian nuisance principles could, in theory, be extended to protect solar access independently of the formal easement framework, but no Indian court has yet taken that step, and the demanding actionable-nuisance threshold applied in existing light-and-air cases makes such an extension far from guaranteed. And like Germany and the European Union, India’s most concrete recent legal energy has gone into subsidising and streamlining the installation of solar capacity — through PM Surya Ghar and MNRE’s Phase II programme — while leaving the shading-dispute problem essentially unaddressed by dedicated legislation.
What India additionally lacks, relative to both comparators, is any statutory mechanism — of the kind found in roughly three dozen American states — allowing a solar owner to create and record an express easement protecting a defined skyspace quickly, without waiting on the twenty-year prescriptive period that Section 15 otherwise demands. Given that the overwhelming majority of Indian rooftop solar installations are only a few years old, this absence is particularly consequential: the one legal mechanism the Easements Act does offer is, for the present generation of solar adopters, largely inaccessible for a generation to come.
Directions for Reform
Several measures, drawn from the comparative material above and adapted to the Indian context, would narrow this gap. A dedicated statutory solar easement provision — inserted into the Easements Act or enacted as freestanding legislation under MNRE’s policy umbrella — could allow neighbours to create and register an express, immediately effective easement protecting a defined solar skyspace, modelled on the American approach, without requiring two decades of prior enjoyment.[26] Model building bye-laws and state town-planning regulations could be amended to require solar impact to be considered as a material factor in sanctioning nearby construction, in the way English planning law has begun to require following the McLennan v Medway Council line of reasoning[27] — a step that would not create an absolute veto but would force local authorities to weigh the trade-off explicitly at the sanctioning stage. Housing society and RWA bylaws could be brought within a statutory framework, similar to Germany’s 2024 reform, placing the burden on a society seeking to block a rooftop or balcony solar installation to justify that refusal, rather than leaving residents to negotiate consent on an ad hoc basis.[28] Finally, given the practical difficulty of retrofitting protection into already-built neighbourhoods, solar-oriented town planning — building height, setback, and orientation norms calibrated to preserve solar access at the design stage — would sidestep much of this dispute before it arises, consistent with the “solar envelope” planning approach advocated in comparative literature.[29]
Conclusion
India does not currently recognise a general right to sunlight for renewable energy purposes, and the one statutory mechanism that could, in principle, protect a solar installation against a neighbour’s later shading — the prescriptive right to light and air under Section 15 of the Indian Easements Act, 1882 — is built around windows rather than photovoltaic panels, and requires twenty years of uninterrupted enjoyment that almost no current rooftop solar owner in India has yet accumulated. General nuisance principles offer a theoretical, largely untested alternative route, subject to a demanding actionable-nuisance standard that Indian courts have applied strictly in the ordinary light-and-air context. Meanwhile, India’s substantial recent legal and policy investment — PM Surya Ghar, MNRE’s Rooftop Solar Phase II programme, and state net-metering regulations — has gone almost entirely toward encouraging and subsidising the installation of solar capacity, leaving the separate problem of protecting that capacity once installed largely unaddressed. As India pursues its rooftop solar targets in increasingly dense urban environments, the gap between a colonial-era easements statute and the practical needs of a modern renewable energy programme is likely to become a live legal issue — one that, as things stand, Indian legislators rather than Indian courts are best placed to resolve
[1]Press Information Bureau, Government of India, “PM Surya Ghar: India’s Solar Revolution,” on the milestone of ten lakh solar-powered homes as of 10 March 2025 and the target of one crore households.
[2]General principle discussed in “A Glance Over The Easementary Rights,” Mondaq India, describing the right to light as protection against a particular form of nuisance rather than a natural incident of ownership.
[3]Section 15, The Indian Easements Act, 1882, on the requirements for a prescriptive easement of light and air: peaceable and open enjoyment, as of right, without interruption, for twenty years.
[4]Ibid., on the extended thirty-year period applicable where the servient property is government land.
[5]Section 5, The Indian Easements Act, 1882, classifying the right to receive light through windows without obstruction as a continuous easement.
[6]Ibid.; see also “An Overview: Law of Easements in India,” iPleaders, on the classification and illustrations of continuous easements under the Act.
[7]“Violation of Easementary Rights,” Legal Services India, on the Indian standard requiring that diminution of light interfere materially with physical comfort or occupation, and the Calcutta High Court’s formulation requiring the obstruction to render the house unfit for ordinary habitation or business use.
[8]Law Web, “How to prove infringement of easementary right to light and air?,” discussing Rafat Ali v. Sugni Bai, 1999 (1) SCC 133, on the definition of actionable nuisance, and In re Reba Samanta (1993) ILR 1 Cal 317.
[9]CaseMine, “obstruction to light and air,” summarising Mt. Alifannessa v. Ali Akbar, in which the plaintiff sought a declaration of easement of light and air and a mandatory injunction, with the court examining which specific windows were affected.
[10]CaseMine, “right to light,” summarising Kasturi Lal and Another v. Krishan Chand and Others on the requirement of substantial reduction in light and air sufficient to amount to a nuisance.
[11]Law Web, “How to prove infringement of easementary right to light and air?,” quoting the Calcutta High Court’s reasoning in In re Reba Samanta.
[12]Section 15 and Section 5, The Indian Easements Act, 1882.
[13]Cf. The Planner, “Legal landscape: Rights to light — the problem with solar,” on the analogous English structural mismatch between aperture-based doctrine and solar panel technology, which applies with equal force to India’s textually similar statutory framework.
[14]SurgePV, “MNRE Rooftop Solar Policy Guide India 2026,” on the Rooftop Solar Phase II programme and the PM Surya Ghar Muft Bijli Yojana as the principal drivers of India’s recent rooftop solar expansion.
[15]Wikipedia, “Solar easement,” noting that thirty-six U.S. states have enacted statutory protection for solar easements, a category of legislation with no Indian equivalent.
[16]General provisions on express grant of easements under the Indian Easements Act, 1882, discussed in “Easement rights in India: Indian Easement Act 1882,” LawArticle.
[17]CaseMine, “obstruction to light and air,” noting judicial discussion of the proposition that a right to light cannot be acquired outside the Indian Easements Act, and its qualifications.
[18]Section 38, Specific Relief Act, 1963, on perpetual injunctions to prevent breach of an obligation existing in favour of the applicant.
[19]Prah v. Maretti, 108 Wis. 2d 223, 321 N.W.2d 182 (Wis. 1982), discussed in the companion comparative analysis of U.S. solar access law.
[20]Press Information Bureau, “PM Surya Ghar: India’s Solar Revolution,” on subsidy and loan terms for residential rooftop systems.
[21]Ministry of New and Renewable Energy, “Operational Guidelines for Saturation of Government Buildings with Rooftop Solar under PM-Surya Ghar,” on site assessment requirements including identification of shadow-free areas.
[22]SurgePV, “Rajasthan Solar Policy 2026: RERC Regulations & Subsidies,” on the regulatory scope of state electricity regulatory commissions with respect to net metering and renewable purchase obligations.
[23]Robinsun, “The right to plug-in solar installations — changes in property law,” on the July 2024 German reform shifting the burden of proof onto landlords and co-owners seeking to block balcony solar installations.
[24]Cf. Palmetto, “Solar Access Laws by State,” on the American statutory approach of voiding covenants that restrict solar installation, a legislative model without a direct Indian counterpart for housing society bylaws.
[25]The Planner, “Legal landscape: Rights to light — the problem with solar.”
[26]Cf. “A Comprehensive Review of Solar Access Law in the United States,” Solar America Board for Codes and Standards, on the structure and content requirements of American statutory solar easements.
[27]Harrison Drury, “Can I protect the access to sunlight to my solar panels?,” on the English planning law development requiring solar impact to be treated as a material consideration in development decisions.
[28]Robinsun, “The right to plug-in solar installations — changes in property law.”
[29]Exactus Energy, “Solar Easements in U.S. Energy Policy and Project Development,” on proactive urban planning and solar envelope concepts as a long-term alternative to dispute-driven protection.
