Answer : 1. "मणिपुर"
Explanation :

Recently the Indian Navy received Warship Imphal from Mazagon Dock Shipbuilders Limited (MDL) in Mumbai. The design on the top of the ship depicts 'Kangla Palace' on the left and 'Kangla-Sa' on the right. Kangla Palace is an important historical and archaeological site of Manipur and was the traditional seat of the kingdom. ‘Kangla-sa’ with dragon head and lion body is the state symbol of Manipur. Imphal is the third of four warships sanctioned under a key project named P-15B. INS Visakhapatnam and INS Mormugao have already been commissioned. The ship has about 75% indigenous content including medium-range surface-to-air missiles, BrahMos missiles and others.