"I think we have said enough about the series and we are not going to ask them anymore. The ball is in their court now and they now have to decide and inform us about the fate of the series," Khan told reporters.
The former diplomat, in his most strong statement on the coming series and relations with India, said the PCB had done enough on its part to show its keenness to play the series and revive bilateral ties.
The PCB chief said if the Indian board backed out of the series which Pakistan is supposed to host it would approach the ICC and other member boards.
"The series is part of a proper MOU signed between the two boards and we will pursue this matter if required," he added.
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Khan said that Pakistan's stance remained clear that cricket and politics shouldn't be mixed.
Khan said that Pakistan had already started work on a plan B but had not met with success as yet since they were only two teams free in December.
"One is Zimbabwe whom we have already played twice this year and the other is Bangladesh who will be busy in their premier league. But we are looking at other options as well," Khan said.