Chasing 163 for a win, Daredevils could manage just 144 for eight with all the big guns failing to contribute much.
"We did not bat well, 160 was chase-able. The required batting effort was just not there. We lost two early wickets and failed to make it in the last few overs," Sehwag after the match.
He defended team selection when asked if presence of spinner Shahbaz Nadeem could have made some difference.
"Varun Aaron and Umesh Yadav have bowled brilliantly for me. I cannot sit them out. It was a tough choice but we thought that the grass might help the pace bowlers," he said.
He said his side has the wherewithal to qualify for the final by winning the Qualifier two.
"We have another chance to get there, we cannot relax, need to go all out. We can make it to the final," said Sehwag.
Winning skipper Gautam Gambhir said they were confident of defending the total.
"We always felt that it was a 140-145 wicket, but when we got 160, we thought it was an above par score," he said.
Asked if Jaques Kallis' bowling along with his batting has proved crucial, Gambhir said each and every bowler has contributed in their good run so far.
"Not only about Kallis, all of them have bowled have bowled very well, lot of credit to all the bowlers including Balaji, Abdulla, Narine and others," Gambhir said. MORE