The petitioner is a Company incorporated on 13.03.1957 engaged in the manufacture of heavy electrical equipment. M/s.Areva T&D Instrument Transformers Private Limited (AITPL) was amalgamated with the petitioner with effect from 01.01.2006 vide a Scheme of Amalgamation, which was approved by the Hon'ble Delhi High Court by order dated 14.08.2007. For the assessment year 2011-12, the Return of income filed by the petitioner was selected for scrutiny and order under Section 143(3) read with Section 92 CA of the Act was passed after making disallowances. The assessment proceedings were completed based on full and true disclosure of all relevant details. Thereafter, the respondent issued the impugned notice under Section 148 of the Act on 31.03.2018, alleging that the income has escaped assessment. The petitioner vide letter dated 09.05.2018 filed return of income in response to the impugned notice and sought a copy of the reasons recorded for reopening the assessment. The respondent issued the reasons vide letter dated 06.07.2018. According to the respondent, the petitioner has made certain transactions in the PAN of amalgamating Company [M/s.Areva T&D Instrument Transformers Private Limited (AITPL)] for the assessment year 2011-12 and thus, there was reason to believe income chargeable to tax has escapped assessment. The respondent reopened the assessment merely based on suspicion and not based on any tangible material on record. The respondent also vaguely stated that the petitioner has undertaken some transactions without mentioning the nature/parties to the transactions. The respondent failed to share the details despite specific request made by the petitioner through their letters dated 29.08.2018 and 17.09.2018. Without even waiting for the petitioner to file its objections to the reasons for reopening, the respondent issued notice under Section 143(2) dated 21.08.2018 and thereafter, passed the impugned order of assessment under Section 143(3) read with Section 147 dated