Heritage Conservation in India: Framework, INTACH, ASI and the Conservation Practitioner

The Scale of India's Heritage Challenge

The scale of India's built heritage is difficult to comprehend from outside the sector. The formal protected inventory — 3,693 ASI centrally protected monuments — is only the surface of a far larger set of significant buildings, sites, ensembles and cultural landscapes.

Tamil Nadu alone is home to around 33,000 temples registered with the Hindu Religious and Charitable Endowments (HR&CE) department, ranging from major pilgrimage sites with thousands of visitors daily to village temples with congregations of a few hundred. The majority of these structures have never been formally surveyed, their condition records are absent or informal, and the majority lack dedicated conservation budgets.

The resources available for this task are radically insufficient at the national level. ASI has approximately 600 conservation and scientific staff to manage 3,693 protected monuments across the country. INTACH, which operates as a non-governmental organisation with membership fees as its primary income, relies heavily on project grants, institutional partnerships and volunteer labour. State archaeology departments vary enormously in capacity, from relatively active departments with their own conservation wings to skeleton operations with minimal field capacity.

The result is that conservation in India is chronically under-resourced relative to its mandate, and the priority necessarily falls to the highest-significance and highest-visibility sites. The vast middle ground — structures that are architecturally significant but not famous, locally important but not nationally listed — is largely unmanaged from a conservation perspective.

The Legal Framework

The primary legislation for centrally protected heritage in India is the Ancient Monuments and Archaeological Sites and Remains Act 1958 (AMASR Act), as amended by the Ancient Monuments and Archaeological Sites and Remains (Amendment and Validation) Act 2010.

The AMASR Act defines an 'ancient monument' as any structure, erection or monument of historical, archaeological or artistic interest, or any remains thereof, which is of national importance. The Central Government, on the advice of ASI, declares specific structures as 'protected monuments' through gazette notification. Once declared, a protected monument cannot be altered, repaired, moved or built upon without ASI permission.

The 2010 amendment established mandatory regulated zones around all ASI centrally protected monuments: a Prohibited Area of 100 m from the protected limits (no construction permitted); and a Regulated Area of a further 200 m (construction requires prior permission from the National Monuments Authority, NMA). These zones have significant implications for development planning in areas where protected monuments are located.

The Antiquities and Art Treasures Act 1972 regulates trade in antiquities (objects over 100 years old) and requires registration of antiquities with ASI. It is primarily relevant to moveable heritage rather than built structures.

State governments have their own protection legislation for monuments of state (but not national) importance. Tamil Nadu's state-level protection operates under the Tamil Nadu Ancient and Historical Monuments and Archaeological Sites and Remains Act 1966.

For temples, the Hindu Religious and Charitable Endowments Act (Tamil Nadu, 1959 and amendments) governs the administration of temples under the HR&CE department. This is a distinct legal framework from the archaeological heritage legislation and involves different governmental authorities.

The Archaeological Survey of India

The Archaeological Survey of India (ASI) is the central government body responsible for the protection, conservation and maintenance of centrally protected monuments. Established in 1861 under Sir Alexander Cunningham, it is one of the oldest heritage institutions in Asia.

ASI is structured through regional circles (currently 24 circles) that cover the country geographically. Each circle is responsible for the protected monuments within its geographic area, including maintenance, conservation, excavation of archaeological sites, and visitor management at major sites.

ASI's conservation practice follows established principles of authenticity and minimal intervention, consistent with international charters. In practice, the organisation has faced sustained criticism over the past several decades for the quality of conservation interventions at some protected monuments, particularly the inappropriate use of cement and lime in repair works that causes accelerated deterioration of historic fabric.

For permission to work at an ASI protected monument — whether for conservation, research, documentation or drone survey — formal written permission from the circle Superintending Archaeologist or the Director General (for major works) is required. The process involves submitting a formal application with project scope, methodology, credentials of the team and, for physical interventions, a detailed conservation proposal.

ASI also administers the World Heritage properties of India under the UNESCO World Heritage Convention, of which India currently has 42 inscribed properties (as of 2025).

INTACH: The Indian National Trust for Art and Cultural Heritage

INTACH (Indian National Trust for Art and Cultural Heritage) was established in 1984 as a membership-based, not-for-profit organisation for the protection and promotion of India's natural and cultural heritage. It is headquartered in New Delhi with chapter offices in most major Indian cities.

INTACH's mandate covers the vast landscape of heritage outside the formal protection of ASI and state departments. Its most significant programmatic work includes the Heritage Listings programme — district-by-district surveys documenting unlisted heritage structures — and the INTACH Heritage Academy, which runs training programmes in conservation practice.

The INTACH Charter for the Conservation of Unprotected Architectural Heritage and Sites (2004) is the primary Indian professional document for conservation practice on unlisted buildings and sites. It is modelled on the Venice Charter (ICOMOS, 1964) and the Burra Charter (ICOMOS Australia, 1979) but adapted to the Indian context, including the significance of living heritage and the diversity of India's architectural traditions.

INTACH's key principles for conservation practice include: minimum intervention (do as much as necessary, as little as possible); reversibility (interventions should be reversible to allow better approaches in the future); authenticity (preserve original material and craftsmanship); and compatibility (new materials and techniques must be compatible with original fabric).

INTACH does not have statutory powers — it cannot legally protect heritage, only advocate for it and document it. The organisation's influence is primarily through professional capacity-building, public advocacy and project-level technical assistance rather than regulatory enforcement.

State-Level Protection and Administration

Each state government in India has its own archaeology department responsible for state-protected monuments — structures of state importance that fall short of national significance criteria. State-protected monuments typically number in the hundreds per state and are administered under state-level legislation equivalent to the AMASR Act at the central level.

In Tamil Nadu, the State Department of Archaeology and the Epigraphy division together manage a substantial inventory of state-protected monuments, in addition to ongoing archaeological excavation and epigraphical survey work. The state's Nathamani Kalai Arangam (architecture and art heritage programme) provides conservation technical support for significant Tamil Nadu structures outside the ASI inventory.

The HR&CE (Hindu Religious and Charitable Endowments) department in Tamil Nadu administers approximately 33,000 temples and mutts (religious institutions). This is administratively and financially separate from the Department of Archaeology, and temples under HR&CE are not considered 'protected monuments' in the archaeological sense even when they are of major historical significance. Conservation work at HR&CE temples is funded through the temple's own endowment income, with technical oversight from the HR&CE Engineering wing — an arrangement that has sometimes led to conservation outcomes inconsistent with professional standards.

Conservation Standards in Indian Practice

Conservation practice in India is guided by a layered set of standards documents, of which the most important are:

The Venice Charter (ICOMOS, 1964) — the international baseline for conservation ethics and practice. Its core principles — authenticity, reversibility, minimal intervention, documentation — are the foundation from which all national and regional charters depart.

The INTACH Charter (2004) — the primary Indian professional document, adapting Venice Charter principles to the Indian context. It explicitly addresses living heritage (temples, mosques, ghats in active use), the significance of traditional craftsmanship in Indian conservation, and the specific material traditions (lime plaster, stone, timber) of Indian historic buildings.

ASI Conservation Guidelines — ASI maintains internal guidelines for conservation work at its protected monuments. These have evolved over time and incorporate lessons from past failures (particularly over-use of cement repair).

The ICOMOS Delhi Declaration (2009) — 'The Spirit of Place' — addresses the intangible dimensions of heritage significance, particularly relevant in the Indian context where spiritual and living heritage is central to conservation decisions.

In practice, the conservation standards applied at a given site depend heavily on who is responsible for the work: ASI-controlled sites follow ASI guidelines; projects with international funding (UNESCO, EU, Aga Khan Trust for Culture) typically follow stricter Venice Charter interpretation; private and trust-managed sites operate with significantly more variation, from exemplary traditional craft-based conservation to damaging cement-and-paint interventions.

The Unlisted Heritage Problem

The most significant challenge in Indian heritage conservation is not the management of the famous, listed, well-funded monuments — it is the vast inventory of unlisted heritage that has no legal protection, no institutional support and no funding mechanism.

INTACH estimates over 60,000 structures of heritage significance exist outside the formal protection system. These include: vernacular domestic architecture from the colonial and pre-colonial periods; industrial and agricultural heritage; religious structures below the significance threshold for formal listing; civic and institutional buildings; and historic urban fabric in towns and cities across India.

For unlisted heritage, the legal situation is stark: there is no prohibition on demolition, alteration or neglect. A historically significant bungalow, a 19th-century mill building, a village mansion of exceptional craftsmanship — none of these has any automatic protection under Indian law unless the owner or a competent authority takes specific steps to protect them.

The practical implications for conservation work on unlisted heritage are significant. Any intervention depends entirely on the owner's willingness and resources. Documentation of unlisted heritage is voluntary. INTACH provides technical guidance but cannot enforce conservation standards. Local planning authorities can designate 'heritage precincts' under town planning legislation, providing some protection to groups of buildings — a mechanism used in Chennai, Mumbai, Ahmedabad (a World Heritage City) and other cities — but this covers a small fraction of India's unlisted heritage.

For practitioners working on unlisted heritage in India, the realistic conservation pathway is: early engagement with INTACH for technical guidance; documentation of the structure's significance to build the case for conservation; connection with local heritage advocacy networks; and, where possible, identification of adaptive reuse or community use programmes that provide a funding rationale for conservation without requiring grants.