Dear Sir
! You have to construt a room with bath room at 2nd floor. put 12mm dia rod 6'' centre to centre on both side because they have to take load of roof and water tank. Put the water tank staggered near the walls.
2. Atleast water should be filled for 10 days on RCC slab after it water should be sprinkeled for a week.
3.Take 10 days for removing the shuttering.