The SENSEX Index decreased 15 points or 0.02 percent on Friday to close at 77522 points. The decline was led by Maruti Suzuki (-1.55%), Infosys (-0.97%) and Tech Mahindra (-0.95%). On the upside, the strongest performers were Power Grid (2.87%), Nestle India (1.71%) and Kotak Mahindra Bank (1.42%).