IREDA, NTPC, ONGC, REC and SAIL were among most active PSU stocks in today's trading session. Rail Vikas Nigam, IDBI Bank, HUDCO, RITES and BHEL were trading firm during the early session.

IREDA, REC, MMTC, HUDCO, BHEL, IDBI Bank were among biggest losers from public sector stocks on Friday.

Indian markets are witnessing higher volatility this week with market players not sure about the direction for the market.

Dredging Corporation opened at Rs 833 but started drifting towards intraday low of Rs 806. The stock closed the trading session near day's low and we could see major support around Rs 763.

RCF, HMT, IREDA, ONGC, Dredging Corporation and NALCO were top performers among public sector stocks.

ONGC, RCF, NALCO, HMT, IREDA shares were among top gainers in PSU segment after yesterday's sell-off.