Mumbai, Sep 22 - A key index of Indian equities markets slipped from the day's highs Tuesday to end trade 121 points in the green.

The 30-scrip sensitive index (Sensex) of the Bombay Stock Exchange (BSE), which opened marginally higher at 16,805.22 points against Friday's close at 16,741.3 points, shut shop at 16,862.61 points (provisional), up 121.31 points or 0.72 percent.

The Nifty of the National Stock Exchange (NSE) ended marginally in the green at 5,011.95 points, up 0.72 percent.

Broader market indices also ended in the positive terrain, with the BSE midcap index closing 0.58 percent higher and the BSE smallcap index up 0.97 percent.