Indian stock markets are stable, but individual stocks show varied performance. Infosys surged on confirming its Rs 18,000 crore buyback program, while TCS gained from a new NHS Supply Chain contract. KEC International dropped over 6% after Power Grid Corporation barred it from tenders for nine months. Waaree Energies fell amid Income Tax searches despite strong quarterly results. Tenneco Clean Air India listed with a 27% premium, and MphasiS stabilized after its promoter Blackstone sold a stake. Max Healthcare Institute jumped on strong Q3 earnings.