Firstsource Solutions stock jumped 20 per cent after billionaire investor Rakesh Jhunjhunwala bought a 5.13 per cent stake or 25 lakh shares in the company at an average price of Rs 10. According to the NSE bulk deal data, the sellers were Aranda Investment Mauritius Pvt Ltd and ICICI Bank.

The stock ended the day at Rs 11.62, up 19.92 per cent, on the BSE. The total traded quantity on the stock stood at 12.80 lakh shares against a two-week average of 2.46 lakh shares.