The two teams that going to enter Semifinal of the IPL 2 will be Delhi Daredevel (DD) and Chennai Super Kings(CSK) while the two other teams that are in contension are :
one from Deccan Chargers(DC)and Royal Challenge Bangalore(RCB) or
Kings eleven Punjab(KXIP) if they beat Chennai Super stars(CSK) or
Rajasthan Royals(RR) if they beat Kolkatta knight Riders(KKR) and chennai sper kings(CSK) beat punjab kings eleven(KXIP).
So One from Deccan Charger(DC) and Royal Challenge Bangalore(RCB)
and
one from Kings Eleven Punjab(KXIP) and Rajasthan Royals(RR)