Validity of reopening of assessment u/s 147 - AO did not issue...

Validity of reopening of assessment u/s 147 - AO did not issue the notice under section 143(2) - It is the discretion of the Assessing Officer to accept the return of income of assessee as it is, or to proceed further with the assessment of income, once the Assessing Officer decided to proceeds he has to issue notice under section 143(2) to make the assessee aware that his return of income has been selected for scrutiny assessment. - This default of non-issue of notice u/s 143(2) of the Act is fatal to the order of re-assessment and have rendered the whole reassessment proceeding void-ab-initio being without jurisdiction - AT