At present, two power exchanges are operational in India, namely Indian Energy Exchange (IEX) and Power Exchange of India Ltd. (PXIL).

PTC is among the most credible player in bilateral market as well as on the power exchange. PTC through its subsidiary, PTC India Financial Services, co-promoted the first national power exchange in India, namely Indian Energy Exchange (IEX) in the year 2008. PTC plays a key role on IEX as it has the biggest portfolio of trading power on the exchange through traders.

A number of CPPs avail PTC services to trade power on the exchange as clients of the company. IEX had begin with day-ahead transactions but now number of new products like term-ahead, intra-day and contingency transactions etc have been launched. In the recent times, the trading of Renewable Energy Certificates (REC) has also been introduced.

PTC's volume on power exchange during the year 2009-10 reached 1830 MU against previous year figure of 1317 MU, registering a growth of 33% over the previous year. So far, PTC's traded volume on power exchange is 10% of its own trading portfolio.