Nearly half of the 18 lakh people under the Income Tax scanner for suspicious bank deposits during the demonetisation period, have been put in the 'doubtful' category, but action against them will follow only after the new tax amnesty scheme which ends on 31st of March. <br/><br/>Under 'Operation Clean Money', the I-T department had sent SMS and e-mails to 18 lakh people, who had made deposits of over 5 lakh rupees during the 50-day window provided to get rid of old 500 and 1,000 rupee notes. They were asked to clarify on the deposits and their source by yesterday. Since Pradhan Mantri Garib Kalyan Yojana runs till 31st of March, action against any depositor can be taken only after this scheme closes as the depositor may choose to disclose the wealth and pay taxes.