Analysts remain bullish on Jio Platforms Limited as the 30,213-crore mega IPO got fully subscribed on Wednesday within the first hour of opening. Dharmesh Kant, Head of Equity & Derivative Research at Chola Securities, told CNBC-Awaaz that he expects listing gains of 15-20% and advised investors to consider both Jio and Bharti Airtel for exposure to the telecom sector. Jio is slated to list on October 28, on both NSE and BSE.