The stock jumped 4.58 per cent to end at Rs 123.20 on BSE. During the day, it gained 8.91 per cent to Rs 128.30.
At NSE, shares of the company soared 5 per cent to close at Rs 123.45.
"The company has received a Letter of Intent from TANGEDCO (Tamil Nadu Generation and Distribution Corporation Ltd) ...For execution of balance of plant equipment/systems including civil works for 1 x 800MW - North Chennai Supercritical Thermal Power Project, Stage - III, in the premises of existing NCTPS at Ennore and Puzhudhivakkam Village, Ponneri Taluk, Tiruvallur District, Tamil Nadu on EPC basis," BGR Energy Systems said in a BSE filing.