Agarkar is not too bad and nobody here tried to make him that! But he has not been useful at all in Indian wickets (esp. this match!). Barring that wicket of Sangakkara, he has looked listless in this match! He has improved no doubt, but doubts regarding his role in test cricket on Indian pitches is highly in doubt!
RP Singh can at least be given a chance! We already have a lot of established players playing in the XI like Kumble, Laxman, Ganguly, Dravid, Tendulkar, Sehwag, etc. RP Singh can be one more injection of fresh young blood! He at least shows promise. He bowls a tight line and at the same time works to pick up wickets!
Murali was played out superbly by the Indian batsmen! Its not that he bowled badly. The Indians kept him greatly at bay!