The first Test has been marred with many controversial decisions over the last three days by Australia's Steve Davis, Ian Gould of England as six of the ten decisions were given against the touring side.
The Decision Review System designed for players' has not been used in the current series due to cost factors which has made it look more prominent as the country which hosted a two-match Test series against England early this year has used DRS early this year.
The absence of this system which allows players to appeal for reviews by the television umpire has left the Pakistan coach fuming as he questioned the media as the country had included DRS in the Test series against England while it is not used in the next home series featuring Pakistan and Sri Lanka.
"They had it for England, so why not here?" asked Whatmore, who guided Sri Lanka to the World Cup title in 1996, asked reporters after the third day's play.
Fuming over the absence of the Decision Review System, Whatmore said he was not happy with the absence of the review system.
"It does not seem right to me that you have it for one series and not for another.
"The DRS should be made compulsory for every series. That will go a long way in helping a lot of things -anything that will help make correct decisions."
Asked if he wantd to give an official complaint on the two field umpires, he said wouldn't make any comments in public.
"Whatever I need to say will be done through official channels," he said.
"There will be a fair bit to say, but I can't make any public comment. We will do it the right way. We have ways of communicating with those who matter."
Whatmore trying to boost the team's morale after being bowled out for 100 in the first innings, said he wanted the players to play thier natural game.
"We just make it known to the players that it is out of our control and they need to do what they have to do," he said. "We just try to make the most of it."
Pakistan, chasing a target of 510, were bowled out for 100 in the first innings and have lost four wickets for 103 runs in the second innings. With 407 runs required to win the first Test, the touring side is staring at a defeat as they have another day to play to save the Test.
The absence of DRS has added more woes to the touring Pakistan side as they have witnessed a few controversial decisions which went in Sri Lanka's favour.
The International Cricket Council had earlier announced that DRS was mandatory for all series but changed its stance in 2011 and made it optional following objections from India.