The 40-year-old off-spinner, who retired from international cricket in 2011, bowled in tandem with left-arm spinner Murali Karthik in the nets.
Muralitharan looked unfazed by the controversy and gave some tips to Tamil Nadu lad Karthik during the net session.
Muralitharan did not try anything unusual and concentrated on line and length. He surprised some RCB batsmen with his famous doosara.
Muralitharan appeared friendly and jovial, making younger team-mates feel comfortable.
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RCB spearhead Zaheer Khan, who took part in some sprinting yesterday, did not attend the session today.
Zaheer had sustained a calf injury during Mumbai's Ranji Trophy game against Gujarat last December and was then dropped from the Indian Test squad against England.
RCB think-tank has decided to take rest tomorrow and resume the camp on April one, expectedly in the presence of big stars Chris Gayle, A B de Villiers and Tilakratne Dilshan at the nets.