Telecom operator Bharti Airtel has withdrawn its bid to purchase assets of Reliance Communications (RCom) after terming the move of committee of creditors to extend the bid submission deadline on the request of Reliance Jio as "extremely unfair" and "biased".Bharti Airtel, Bharti Infratel and private equity firm Varde Partners have already submitted their bids for assets of Reliance Communications, while Reliance Jio has sought extension of the asset sale deal deadline by another 10 days. Airtel has placed conditional bid to buy spectrum of RCom, while Bharti Infratel has submitted bids for mobile towers.The CoC extended the deadline by 10 days and has decided to open bid now on November 25.