BENGALURU, Nov 22 (Reuters) - Indian shares slipped on Monday as market heavyweight Reliance Industries led energy stocks lower and the return of COVID-19 restrictions in Europe weighed on investor sentiment. The blue-chip NSE Nifty 50 index (.NSEI) dropped 0.61% to 17,656.20, while the benchmark S&P BSE Sensex (.BSESN) fell 0.65% to 59,250.74 by 0357 GMT. Shares of Mukesh Ambani-led Reliance Industries (RELI.NS) fell 3.71% after the oil giant said last week it had decided with Saudi Aramco to reevaluate a proposed $15 billion stake sale in its oil-to-chemicals arm to Saudi Aramco. read more The Nifty Energy Index (.NIFTYENR) fell 1.75%, led by losses in Reliance. Other laggards on the sub-index were state-run Oil and Natural Gas Corp (ONGC.NS), down 2.85%, and Tata Power Company (TTPW.NS), down 2.07%. Oil futures skidded about 1%, sending Brent crude and U.S. crude to seven-week lows amid oversupply concerns. Shares of Paytm (PAYT.NS) fell about 3% in their second day of trading. On Thursday, the digital payments start-up made one of the worst major stock market debuts in India, as its shares fell more than 27% after the country"s largest-ever IPO. read more Asian stocks opened lower as investors evaluated oil prices, COVID-19 restrictions in Europe and talk of hastened tapering from the U.S. Federal Reserve.