Answer: Hilsa
Notes: Hilsa, the pricey fish has been caught in Uttar Pradesh, Bihar and Jharkhand for the first time in three decades. The fish lives in the seas but spawns in the rivers. This has been witnessed after the gates and fish locks of Farakka barrage were changed to allow the upstream migration of the fish. Hilsa or ilish, has been the favourite gift to Indian leaders from the Bangladesh Prime Minister Sheikh Hasina. It depleted after the Farakka barrage was constructed in the Murshidabad district of West Bengal and nets were put on the Bangladesh side.
