This development comes days after Mallya, who is believed to be in the UK, took to Twitter to ask people not to target his son Siddharth.
"In terms of the provisions of Section 167(b) of the Companies Act, 2013, Mr Sidhartha V Mallya, a Non-Executive, Non-Independent Director of the Company has vacated the office of Director w.E.F. March 31, 2016," UBHL said in a BSE filing.
Later in that day, liquor baron Vijay Mallya and Kingfisher Airlines Ltd had submitted in a sealed cover a proposal for repayment of Rs 4,000 crore out of the loan amount of Rs 6,903 crore to the consortium of banks led by State Bank of India by September this year.
Along with Mallya and Kingfisher, the proposal was also submitted by United Breweries (Holdings) Ltd and Kingfisher Finvest (India) Ltd.