Tendulkar could not post a half century in the three innings he batted in the series. In all those three visits to the crease, he was bowled, which saw critics questioning his stay in the longer format of the game.
However, Dhoni, speaking after the match, said he was not worried and added that whenever he had gone through a lean patch he would come up with "brilliant performance."
"The good thing is that whenever people talk about (Sachin) Tendulkar's form, he comes up with a brilliant performance and I'm waiting for that. I don't really get worried about that," Dhoni said in the post-match press conference at the M Chinnasway Stadium.
India won the second Test on Monday by five wickets to clean sweep the series 2-0.
Tendulkar finished series with 63 runs with a highest of 27, achieved today. He was bowled by Tim Southee.
In Hyderabad, he was castled by Trent Boult and in the first innings here, Doug Bracewell had gone through his defence.
Tendulkar has been bowled 51 times in his 190-Test career.