corrigendum - supply , installation , testing and commissioning of battery at bagnan , howrah ( w . b ) refer technical specifications and boq . , supply , installation , testing & commissioning of 12v 150ah solar tubular battery for inverter application including accessories as per technical specification ( annexure-a ) . location: hmrbpl , bagnan ( dist . howrah , w . b ) , buyback of old battery as per scope of work ( annexure-a ) . ( 6v 300ah , exide tubular 3tt 300 ) location : hmrbpl , bagnan ( dist . howrah , w . b ) , buyback of old battery as per scope of work ( annexure-a ) . ( 12v 150ah , stan master 10000 ) location : hmrbpl , mourigram hq ( dist . howrah , w . b ) , buyback of old battery as per scope of work ( annexure-a ) . ( 12v 150ah , inva tubular 500 ) location : hmrbpl , mourigram hq ( dist . howrah , w . b ) , buyback of old battery as per scope of work ( annexure-a ) . ( 12v 180ah , inva flat 1800 ) location : hmrbpl , mourigram hq ( dist . howrah , w . b )