Virender Sehwag smashed 146 off 102 balls as India piled up their highest One-day total of 414/7 against Sri Lanka on Tuesday.
The opener hit 17 boundaries and six sixes after the tourists won the toss and elected to field in good batting conditions at the Madhavrao Scindia stadium, Rajkot.
The run riot on a ground with shorter boundaries enabled India to just surpass their previous One-day record of 413-5 against Bermuda in the 2007 World Cup in the Caribbean.
It was also the fifth-highest score in One-day cricket overall, fuelled by a blazing start to the five-match series as Sehwag and Sachin Tendulkar hammered 153 for the first wicket by the 20th over.
Indian captain Mahendra Singh Dhoni continued the batting feast as he added 156 for the second wicket with Sehwag, before both batsmen fell in successive overs.
Dhoni hit seven boundaries and three sixes in 72 off 53 balls.
Young all-rounder Ravindra Jadeja hit an unbeaten 30 off 17 balls to help India record their biggest total.
Welegedara, Nuwan Kulasekara and Fernando finished with two wickets each.
The ODI Highest innings total is 443 is made by the Srilankan team against  Netherlands and India and South Africa are the only team who has made 400 twice
