The Central Bureau of Investigation (CBI) on Sunday registered a case against yoga guru Baba Ramdev's aide Acharya Balkrishna for allegedly holding a fake passport, an official said.
"We have registered a case against Balkrishna under section 12 of the Passports Act and cheating and forgery," said a CBI official.
Earlier, the investigating agency received a complaint that Balkrishna held more than one passport.
After the crackdown here on Baba Ramdev's fast against corruption in June, the government had asked security agencies to probe the allegations that Balkrishna held multiple passports.
Balkrishna, who resurfaced in Uttarakhand's Haridwar two days after mysteriously disappearing following the crackdown, denied all the allegations and asserted that he was an Indian and held an Indian passport.
Baba Ramdev's business empire comprises 34 companies which are controlled by Balkrishna.