The biggest solar power plant of North East Region is situated in which…

Concept: The North East Region (NER) of India comprises eight states, and renewable-energy facilities there are classified by their source — solar parks convert sunlight via photovoltaic panels, whereas hydroelectric stations harness flowing water. "Biggest solar power plant" therefore refers specifically to the largest grid-connected photovoltaic installation, identified by its installed capacity in megawatts (MW) and its location.

Application:

1. The largest solar power plant in the North East Region is the Amguri Solar Park, with an installed capacity of 70 MW.

2. It is located at Amguri in the Sivasagar district of Assam, developed by the Jakson Group with the Assam Power Generation Corporation Ltd (APGCL).

3. On commissioning it was inaugurated as North East India's biggest solar power plant, which fixes the answering district as Sivasagar.

Cross-check: The Dibang Valley district hosts the 2,880 MW Dibang Multipurpose Project, which is a hydroelectric (water-powered) facility, not a solar plant — so it is the largest hydro project, not the largest solar plant. The Kameng and Tawang districts of Arunachal Pradesh are likewise associated with hydroelectric power, not a record solar installation. Filtering strictly for solar capacity therefore leaves Sivasagar as the correct district.

In the context of this exam, the Amguri (Sivasagar) plant was reported as the North East Region’s biggest solar power plant; note that other 70 MW solar projects have since come up elsewhere in Assam, so always read “biggest” with the exam’s time-frame in mind.