The assessee challenged the notice of reassessment.   Court held that  the Assessing Officer had found that there was likelihood of acts and instance of insider trading by assessee.  Beneficiaries, it was noticed, were promoters group consisting of family member  and the assessee was prima facie found to have earned income which was chargeable to tax but same was not shown in return of income. Accordingly there being a strong foundation for invoking reassessment, challenge to impugned notice under section 148 was  dismissed. AY. 2017-18)