Assessment is  reopened  on the basis of information from the Investigation wing.  Reasons placed on record by Assessing Officer referred to information received by Assessing Officer that assessee had raised a loan from K.J.S. Ahluwalia Group(KG Group)  through Tanish Tradecom Pvt. Ltd and Puneet Oils and Chemicals Ltd(TTPL and POCPL) which were dubious entities. Court held that there was no reference to how Assessing Officer had, at that juncture, formed a view that they were dubious entities.  Reasons did not advert to material that was available to Assessing Officer and which persuaded him to form a belief that income chargeable to tax had escaped assessment. Therefore, reasons recorded lacked necessary jurisdictional prerequisite of reason being recorded, before entering realm of reassessment proceedings.  Tribunal rightly held that Assessing Officer had proceeded in a mechanical manner as he had based his decision to reopen his assessment on information received from investigation wing and there was absence of independent application of mind by Assessing Officer. Court also held that a mistake, which can be corrected under section 292B, should be such that if excised (removed) it does not change tenor and scope of documents/proceedings referred to therein i.e., return of income, assessment, notice, summons or other proceedings, taken, furnished or made or issued or taken or purported to have been furnished or made or issued or taken against assessee under provisions of Act.    Order of Tribunal is affirmed. No substantial question of law.(AY. 2010-11)