(i)improvement and renovation of staff quarters interior/exterior surface including providing of damage door, s, sanitary fittings, boundary walls, drains, courtyards &amp children park in connection with gm inspection at sahebpara railway colony at bandel under aen/bdc &amp (ii) renovation of switching of posts at konnagar, srirampore, bhadreswar, and hooghly in howrah bandel section in howrah division of eastern railway