Sensex and Nifty ended with minor declines on Tuesday, pressured by IT and bank stocks. The Sensex fell 0.09% to 78,472.87, while Nifty dropped 0.11% to 23,727.65. Nifty breached the critical 200-DMA support, indicating further downside potential. Analysts highlight the negative crossover on the momentum indicator and a weak advance-decline ratio, signaling bearish sentiment.