The Bangladesh Cricket Board have reacted to what they view as a slip in standards.
After the spinners tied down Rajasthan to 160, Rana and Karthik combined together for the second time to complete a successful chase.
Proceeds from T20I against Rest of the World XI will go towards renovation of five grounds in the Caribbean that were affected by hurricanes last year.
The win helped them stall a three-game losing streak, while Royal Challengers succumbed to their third loss in four games.
Delhi Daredevils were bowled out for 129 in 14.2 overs in a chase of 201 at Eden Gardens on Monday.
Kings XI Punjab defeated the Chennai Super Kings by four-run in IPL match in Mohali stadium on Sunday night.
Samson Stars With 45-Ball 92* as Rajasthan Royals beat Royal Challengers Bangalore by 19 runs in Bengaluru on Sunday.
Imam-ul-Haq nephew of Inzamam in Pakistan squad for tour of Ireland and England.
After restricting the hosts to 138, the visitors picked up their first-ever win at the Eden Gardens on Saturday.
Jason Roy smashed an unbeaten 91 as Delhi defeated hosts Mumbai by seven wickets in a last-ball thriller on Saturday.