In T20 cricket, a team usually goes with four front-line bowlers and an all-rounder depending on the nature of the pitch and conditions. They then use part-time bowlers to make up for any front-line bowler who is having an off day at work.
Team India usually likes to go for players with multiple skills – a batsman who is also a handy part-time bowler or a bowler who can be useful with the bat lower down the order.
In World T20, India is the only team to use 8 bowlers twice in an innings. They made the best use of part-timers such as Yuvraj Singh, Suresh Raina, Rohit Sharma and even Virat Kohli when wickets were hard to come by or to contain the batsmen. Ironically, India lost both the matches.
The first incident happened in the 2009 match against South Africa at Trent Bride where part-timers such as Rohit Sharma, Suresh Raina and Yuvraj Singh bowled 7 overs for 46 runs for one wicket.
The second incident happened in the 2012 World T20 match against Australia at Colombo where India used part-timers such as Virat Kohli, Rohit Sharma and Yuvraj Singh who bowled 4 overs for 38 runs for one wicket.
The third incident was in 2014 World T20 where 8 bowlers were used by Netherlands against Ireland. Netherlands too lost the match.