The Planning Commission has boosted the estimate for private sector investment in the Fourth Plan from Rs. 7,500 crores, indicated earlier, to Rs. 10,200 crores. The increase is based on the Commission's discussions with industrialists and economists over the past few months. Meanwhile the Standing Committee of the National Development Council meeting here [New Delhi] to-morrow [November 29] is likely to determine the overall size of the Fourth Plan in addition to discussing questions relating to the States’ resources. The Committee, consisting of all State Chief Ministers and members of Planning Commission is headed by the Commission’s Deputy Chairman, Dr. Gadgil.