India, March 11 -- Pavan Rathnayake and skipper Dasun Shanaka returned to form with blazing fifties, while Kusal Mendis anchored the innings with another half-century as Sri Lanka piled up a formidable 225 for 5 against Oman in their Group B T20 World Cup clash here on Thursday.

After a poor World Cup debut against Ireland, where he fell for a sloppy upper cut for 5, Rathnayake made amends in style, smashing a 28-ball 60 (8x4, 1x6).

He brought up his maiden T20I fifty in just 24 balls, overtaking his previous best of 40 at this venue earlier this month. The 23-year-old charged pacer Jiten Ramanandi for the innings' first six in the 12th over and hammered Sufyan Mehmood for three successive fours to reach the milestone.

Rathnayake and t...