Tension prevailed at Alluri Seetharamaraju Medical College at Eluru, in West Godavari district, as Aqua farmers began rasta roko in front of it, demanding Minimum Support Price (MSP) for prawns. They said that 70 per cent of the economy of India's Aqua farming is obtained from West Godavari. But the aqua farmers are losing at Rs.150 per kg, due to various reasons, they said. They submitted a memorandum to the District Collector, who said that it is not a local issue, but a matter related to Centre also. A meeting is being conducted this evening with Central officials and Chief Secretary is expected to take a decision.