Sensex, Nifty Today: The Indian stock market witnessed the sixth straight session of gains on April 22. The headline indices continued their rally as the Sensex closed at 79,595.59 level up by 187.09 points or 0.24 per cent. On the other hand the Nifty closed at 24,167.25 level up by 41.7 points or 0.17 per cent.