Tata Power's net profit declined 11.5% to Rs 261.7 crore for the quarter. While net sales fell 12.71%, net profit decreased 11.56% and net profit margin improved to 11.9% from 11.75% in the previous year. The company's stock price on the BSE opened at Rs 79.05, touched a high of Rs 79.85 and low of Rs 77.75 before closing at Rs 78.85, up 0.19% from the previous close.