After the Lord's Test win, India suffered embarrassing defeats in the next three matches to lose the five-Test series 1-3, but Raina's 75-ball 100-run knock helped the visitors get back to winning ways in the second One-dayer here yesterday.
"I felt really good scoring my first ODI century in three years. I wanted to bring in fresh energy in the team, and I am glad I could do that with my overall performance today," Raina told BCCI.TV.
It was Raina's first ODI century since 2010 and his first outside the subcontinent, and the left-handed batsman said he had worked hard on his game ahead of the ODI series.
"After all the work I had put into my game in Mumbai with Sachin paaji and (Praveen) Amre sir, I was determined to join the team and bring them some happiness, whether it is by scoring a hundred or taking a brilliant catch," he said.
Despite India losing the Test, Raina said they were a good side and praised skipper Mahendra Singh Dhoni for motivating the team during this lean patch.
"We didn't do well in the Test series but that doesn't mean we are a bad team. We are ranked No. 2 in ODIs and are the reigning World Cup and Champions Trophy winners. MS did a very good job of leading the team after the Tests and maintain the confidence of the young boys. We had decided that we would run for each other and share each other's success. That showed in our fielding performance.