S. 143(3) : Assessment – Profit on sale of property used for residence – Capital gains -Exemption was not claimed in the return however claimed under wrong section in the course of assessment -Merely because assessee claimed deduction under wrong provision of S. 54F assesses claim could not be disallowed if it was allowable under an appropriate provision-Entitle to exemption/s 54 of the Act . [ S.54 , 54F ]