The Maharashtra government on Wednesday declared an area at Amboli in Western ghats in Sindhudurg district, where a rare freshwater fish species was discovered, as a biodiversity heritage site.

Chief Minister Uddhav Thackeray's son Tejas Thackeray, who is a wildlife researcher,and his teamhad discovered the new freshwater fish species - Schistura Hiranyakeshi' near Amboli in Sawantwadi tehsil of Sindhudurg district.