India, who suffered a shock five-wicket defeat against Bangladesh in their opening Group B game, need to beat Sri Lanka on Friday to boost their chances of advancing to the Super Eight stage.
"The real challenge is ahead of us. We had two must-win matches, but have won just one. The guys know what they have to do," said skipper Dravid, whose side set two records during their win over Bermuda here on Monday.
India posted the highest Cup total of 413-5 and then bowled Bermuda out for 156 to resgister the biggest victory in one-day internationals.
Dravid said his team needed to focus on the Sri Lanka match as they had not only to win it, but win it by a handsome margin to better their run-rate.
Sri Lanka and Bangladesh have both won their opening matches.
Bangladesh are in a better position as they have to take on Bermuda in their last group game. Sri Lanka defeated Bermuda by 243 runs.
"There are some things which are not in our control, like the net run-rate. The other teams' matches and results are not in our control," said the Indian captain.
"What is in our control is to go and try to win the next game and win it as well as possible."
Dravid hails Viru's comeback: The Indian skipper said hard-hitting opener Virender Sehwag's return to big-scoring ways augured well for the team ahead of the vital clash against Mahela Jayawardene's Sri Lankans.
"Viru (Sehwag) is a very good player and I'm happy he's part of my team -- a key member. He's back into form just when we need him before a very critical match," said Dravid.
Sehwag, who had just one half-century in his last 14 matches, regained his form against the weakest team in the group when he hammered an 87-ball 114 with three sixes and 17 fours.
Sehwag was named man of the match after scoring his eighth hundred, but first in nearly two years.
"The effort he has put in is fantastic. All credit to him. We expect a lot from him. He has been picked to score more than one hundred for us," said Dravid.
Sehwag said a big innings from him was long overdue.
"I had the confidence. I knew the captain, coach and selectors were backing me and I had to deliver," he said.
"I was waiting for just one innings. It was due for a long time. Thank God, it has come at the right time. I am happy with my performance."