Twelve senior officers of Income Tax Department including one of the ranks of the joint commissioner were compulsorily retired by the government on charges of corruption and professional misconduct. <br />''<br />''Sources said the list is topped by a Joint Commissioner rank officer against whom there are serious complaints of corruption and extortion. <br />''<br />''It also includes an IRS officer in the post of Commissioner (Appeal) in Noida, who was accused of sexual harassment to two women IRS officers of Commissioner rank. <br />''<br />''Another IRS officer, who was compulsorily retired, had acquired movable and immovable assets worth over three crore rupees in the name of self and his family members.<br />''<br />