A block deal of 1.46 lakh shares was executed at Rs 190 per share. Another block deal of 1.46 lakh shares was executed at Rs 225 per share. One more block deal of 1.46 lakh shares was executed at Rs 190 per share.

The three block deals constitute 1.31% of T D Power Systems' equity.

Meanwhile, the S&P BSE Sensex was down 7.69 points or 0.04% at 21,093.34.

On BSE, so far 4.46 lakh shares were traded in the counter as against average daily volume of 3,509 shares in the past one quarter.

The stock was volatile. The stock tumbled as much as 19.76% at the day's low of Rs 190 so far during the day. The stock surged as much as 4.18% at the day's high of Rs 246.70 so far during the day. The stock had hit a 52-week high of Rs 278.95 on 10 May 2013. The stock had hit a record low of Rs 175.40 on 28 October 2013.

The stock had outperformed the market over the past one month till 23 December 2013, surging 21.5% compared with the Sensex's 4.37% rise. The scrip had also outperformed the market in past one quarter, jumping 13.36% as against Sensex's 6.03% gain.

The small-cap company has equity capital of Rs 33.24 crore. Face value per share is Rs 10.

T D Power Systems' consolidated net profit fell 62.1% to Rs 2.87 crore on 36.8% decline in net sales to Rs 102.25 crore in Q2 September 2013 over Q2 September 2012.

T D Power Systems is engaged in the manufactureing of AC generators with output capacity in the range of 1 MW to 200 MW for prime movers, such as steam turbines, hydro turbines, diesel engines, wind turbines, gas engines and gas turbines. The company also manufactures special application generators, and generators for geo thermal and solar thermal applications.