Middle order batsman Suresh Raina has expressed confidence of a return to the national side and said he has fully recovered from a knee injury which he suffered earlier in the year."My rehablitation is over. I am hundered per cent fit now," Raina, who made a composed 92 to help India Blue to a 12-run win against India Red in the the first match of the Challenger Trophy, said."I am feeling good. I am batting and fielding well. My fitness levels have also improved," Raina told reporters after his knock on Thursday."I will definitely make a comeback (into the Indian team)," Raina, who last represented India in a one-day international against West Indies in January this year, said."I know my ability. I have proved myself in the past," the 20-year-old, who has played 30 ODIs so far, said."Whenever I get a chance, I will try and give my hundred per cent," he added.On his performance during India's tour to Pakistan in 2006, the left-hander said, "I have played some good knocks against Pakistan and if I get a chance, I will try and do well," against the arch rivals in the upcoming home series.