The stock soared 6.43 per cent to settle at Rs 7.12 on BSE. In intra-day, the stock climbed 10.31 per cent to Rs 7.38.
At NSE, shares of the company jumped 5.97 per cent to close at Rs 7.10.
On the volume front, 28.20 lakh shares of the company changed hands at BSE and over one crore shares were traded at NSE during the day.
The transaction, expected to be completed by mid-2016, would also help the diversified entity save around Rs 300 crore annually on interest costs.
Bangalore International Airport Ltd (BIAL) owns and operates the Kempegowda International Airport Bengaluru. The airport started operations in May 2008.
In BIAL, GVK Group holds 43 per cent stake, Siemens Project Ventures GmbH 26 per cent and Flughafen Zurich AG Ltd 5 per cent while state-owned entities Airport Authority of India and Karnataka State Industrial Investment & Development Corporation Limited hold 13 per cent each.
