Only 13 of India's 18 biosphere reserves are in UNESCO's World Network. What does international recognition add, and what limits the effectiveness of biosphere reserves in India?

India has 18 notified biosphere reserves (BRs) covering 91,425 sq km. Only 13 of them are in UNESCO's World Network of Biosphere Reserves (WNBR) [1]. Cold Desert was notified in 2009 but joined the WNBR only in 2025 [3]. The UNESCO listing adds outside scrutiny and visibility. How well a BR works, though, depends on India's own legal, financial and data foundations.

What international recognition adds

• External audit: UNESCO reviews each site every 10 years, checking its zoning, size and community involvement [2]. No Indian protected-area law provides a check like this.
• Higher planning standards: UNESCO often approves new sites "subject to documents being submitted", such as vegetation maps and management plans [4]. This pushes States to plan better.
• Visibility: India has the most WNBR sites in South Asia, which strengthens its standing as a mega-biodiverse country [5].
• Reputational pressure: 61 sites from 14 countries have been withdrawn from the network [2]. UNESCO's "exit strategy" required sites to either work fully under its rules or leave [9].
• Limit of the tag: It brings no money and no legal power. BRs "remain under the sovereign jurisdiction" of their country [5].

What limits effectiveness in India

• No law of its own: The BR programme is a scheme that has run since 1986 [6]. Protection in the core zone comes from National Parks and Sanctuaries under the Wildlife (Protection) Act, 1972. Zoning in the buffer and transition areas is only advisory.
• Unreliable funding: The Centrally Sponsored Scheme splits costs 60:40 between Centre and State, or 90:10 for the NE and three Himalayan States [6]. At Similipal, the entire budget provision was surrendered because funds were not released [8].
• Missing data: The Gulf of Mannar BR had no baseline data on its coral reefs until 2018 [7]. Without a baseline, nobody can tell whether the ecosystem is improving or declining.
• Few modern plans: Integrated Management Plans are being piloted in only 4 of the 18 BRs [5].

In short, the UNESCO listing adds a layer of review and standards, but not of protection. India should:

• require baseline surveys before extending IMPs to more reserves;
• release Central funds on a fixed calendar;
• align buffer zones with Eco-Sensitive Zones under the Environment (Protection) Act, 1986;
• have the Indian National MAB Committee review all 18 reserves using UNESCO's checklist.

These steps would help the five unlisted reserves gain recognition and advance SDG 15 (Life on Land).