Explanation:

Recently, a massive fire broke out in the Similipal Biosphere Reserve in Odisha. The core area of the biosphere was untouched by the fire, however the fire is threatening damage to its rich biodiversity.

• It is part of the Similipal-Kuldiha-Hadgarh Elephant Reserve popularly known as Mayurbhanj Elephant Reserve, which includes 3 protected areas i.e. Similipal Tiger Reserve, Hadagarh Wildlife sanctuary and Kuldiha wildlife sanctuary. 
• Two tribes, the Erenga Kharias and the Mankirdias, mainly inhabit the Similipal Biosphere Reserve’s forests and practise traditional agricultural activities (the collection of seeds and timber). 
• The Dongria Kondh population is mainly concentrated in the southern hills of the Odisha state and the Mahanadi River basin, and some are also found in the adjoining districts of the neighboring Andhra Pradesh State.

Hence only statement 1st is correct.