3 Nokrek 1988 Part of Garo Hills (Meghalaya). 4 Great Nicobar 1989 Southernmost islands of Andaman And Nicobar (A&N Islands). 5 Gulf of Mannar 1989 The Indian part of the Gulf of Mannar between India and Sri Lanka (Tamil Nadu). 6 Manas 1989 Part of Kokrajhar, Bongaigaon, Barpeta,...