S.147: Reassessment —Housing project – Information in subsequent year – Not competition of the project – Assessing Officer need not conclusively prove income chargeable to tax escaped assessment at stage of notice — Reassessment notice is held to be valid- If flat purchaser de facto in exclusive possession of dry Balcony attached with flat, area of dry balcony includible while computing Built-up area of flat- Building Completion Certificate and the Occupation Certificate .not issued by the local authority – Not entitle to deduction u/s 80IB (10 of the Act [ S.80IB(10) ,148 ]