Assessment u/s 153A required to be framed within 21 months as time stipulated u/s 153B

Brief of the case: In the above group cases search was conducted and assessments were framed u/s 153A/143 (3). The search was conducted on 21.03.2007 and concluded on 22.03.2007. Hence last of the authorisation of search u/s 132 was executed on 22.03.2007. As per requirement of section 153 B assessment should be completed within 21 month from the end of the financial year in which last of the authorisation of search was executed. Assessment in this case was framed on 24.12.2009. ITAT allowed additional ground of assessee raised before it and held that assessment should be completed before 31.1...