Benchmark indices Sensex and Nifty closed at record highs of 41,859.69 and 12,329.55 respectively on Monday. Among the Sensex 30 stocks, Infosys was the top gainer, rising over 4%. The gain in Infosys stock came after the IT company announced strong third-quarter earnings and found no evidence of financial misconduct by its executives following an investigation into whistleblower complaints.