The better part in total Dookudu film is comic timing of mahesh babu that has immensely surprised the Fans and audience. Apparently we know that there is a hidden comedy angle in Mahesh which has come out by the grace of Trivikram but getting it right at crucial times for Dookudu is the result of hard work put in by Srinu Vytla.
When media started to put pressure on fate of film due to delayed release and extended shooting schedules, that was the horrible time even negative propaganda went very high on Dookudu. Exactly in those times mahesh babu has dubbed for his character in Shabdalaya. It requires great dedication and determination towards your work to get such delicate comedy timing exactly right.
Prince has done it professionally. We can observe that easily in Dookudu comedy scenes of Mahesh with either Samanta or Brahmi or MS Narayana.