"Nobody from ICC (International Cricket Council) has told me not to bowl it. I can bowl whatever I want, but if I get reported again I will have to go to another hearing," he said on arrival here Thursday for the series which does not carry official one-day international status.
Last March, he was reported for chucking his doosra -- a legspinner bowled with an offspinner's action -- and warned he could be banned for a year if he continued to bowl the ball with a 14 degree bend in the elbow, well above the permitted five degrees for spin bowlers.
The ICC meanwhile looks set to change the rules which could see the doosra permitted once again with a meeting next month expected to approve a recommendation that all bowlers be allowed a 15 percent bend in the arm.
Muralitharan welcomed the move.
"Not only me, I think most of the bowlers will look forward to that," he said.
"Always I bowl well with the doosra."
Muralitharan, the former world Test wicket recordholder who is returning after six months recovery from surgery, will bowl in tandem in the three-match series with Australia's Shane Warne, the man who overtook his haul.
Muralitharan had surgery on his bowling shoulder last August, which ruled him out of international cricket until last week's tsunami relief match in Melbourne where he took three for 59 off 10 overs.
Muralitharan, who has 532 wickets from 91 tests and 369 wickets from 238 one-day internationals, said his shoulder was still sore and he remained one or two months away from his best form.
Having been deeply affected by the tsunami tragedy in his homeland and played a significant role in the relief effort, he was determined to give a good account.
He said he enjoyed the tsunami relief match and the response he received from the Australian public made him rethink his stance on not touring Australia.
He opted out of a tour of Australia last July due to the heckling he received from crowds on previous tours.