The 30-share index was trading 39.58 points, or 0.10 per cent, lower at 39,546.83.
After swinging over 300 points, the 30-share BSE Sensex settled 5.67 points, or 0.01 per cent, lower at 39,586.41.
The company said it intends to use the proceeds primarily for capital expenditure, including on-lending to subsidiaries for purposes.
The 30-share index was trading 88.07 points, or 0.22 per cent, higher at 39,680.15 at 0930 hours.
The scrip jumped 17.44 per cent to close at Rs 60.95 on the BSE. During the day, it climbed 24.85 per cent to Rs 64.80.
Extending its gains for second session, Sensex settled 157.14 points, or 0.40 per cent, higher at 39,592.08.
The company said Versova-Bandra Sea Link would cut down commute time of Mumbaikars from over 90 minutes to 10 minutes.
The broader NSE Nifty was quoting 32.60 points, or 0.28 per cent, up at 11,829.05.
After trading in the red for a better part of the day, Sensex pared losses and settled 311.98 points up.
Top losers in Sensex included HCL Tech, Sun Pharma, Hero MotoCorp, Asian Paints, Tata Steel, TechM, TCS and IndusInd Bank.