Reacting to the buzz, shares of the company soared 6.72 per cent to end at Rs 100.80 on BSE. During the day, it jumped 7.78 per cent to Rs 101.80.
At NSE, shares of the company gained 6.87 per cent to settle at Rs 101.
Following the rally in the stock, the company added Rs 2,288.23 crore to Rs 36,297.23 crore in market valuation.
Meanwhile, BSE has sought clarification from Idea Cellular with reference to news that it is exploring options for strategic deal with Vodafone.