At close, the Sensex was up 412.23 points or 0.70% at 59,447.18, and the Nifty was up 144.80 points or 0.82% at 17,784.30 as Investors heaved a sigh of relief as the Reserve Bank of India decided to keep the interest rates unchanged. ITC was the top gainer in the Sensex pack followed by Dr Reddy's Labs, M&M, Tata Steel, Titan, Reliance Industries, Asian Paints, Nestle India, and IndusInd Bank were the other gainers. On the downside, only Tech M, NTPC, Maruti Suzuki, Sun Pharma, and HCL Tech were the laggards, About 2232 shares have advanced, 1072 shares declined, and 117 shares are unchanged. Sectorally, the Nifty Metal index was the biggest gainer, rising 2 percent. Meanwhile, the Nifty IT index ended a wee bit in the red. BSE MidCap and SmallCap indices rose in tandem with the frontline indices and closed 0.9 percent higher each.