Lahkar received the award at the IUCN's ongoing World Conservation Congress in Honolulu, Hawaii last night, an IUCN release said.
Lahkar was among five conservationists across the globe to be nominated for this year's Heritage Heroes Award, aimed at recognising "outstanding efforts" around the world in making a difference in the conservation of World Heritage sites in challenging situations, it said.
Lahkar has been working to save the grasslands, flora and fauna of Manas National Park area for the past two decades and is currently engaged as Manas Landscape Administrator for Aaranyak, an NGO working for biodiversity conservation in northeast India.
"Today I am delighted and honoured to get this award. I have dedicated this award to Manas World Heritage Sites and local communities living around Manas," he said.
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In the early nineties, Lahkar was conducting research at
Manas when he found himself in the height of the Bodo agitation, followed by the armed struggle by Bodo insurgents when people occupied land within the Park and started rampant timber collection and poaching in the protected area.
Along with his team, Lahkar trained ex-poachers, hunters and members of local grassroot NGOs (almost 600 in number) and these poachers-turned-conservationists are now helping the forest department in patrolling and protecting the Manas National Park.
He was also instrumental in connecting Manas Wildlife Sanctuary with the Royal Manas National Park in Bhutan, which led to a system of trans-boundary wildlife monitoring and now supports management in the entire Manas natural area that spreads across India and Bhutan.