Benchmark indices Sensex and Nifty ended in red on Friday. While Sensex lost 732 points to close at 73,878.15, Nifty slipped by 172 points to end at 22,475.85. Earlier in the day, Nifty had reached an all-time high of 22,794.70. Larsen & Toubro, Maruti Suzuki, Nestle India and Reliance Industries were among the biggest losers on Sensex.