"BJP's dream of splitting Pakistan is nothing but a fallacy," Nisar said, describing Rajnath's remarks as just a "shallow claim".
"India is being divided not by any other country, but its own policies," Khan was quoted as saying by Radio Pakistan.
Addressing a Martyrs' Day function in Kathua district in Jammu and Kashmir, Singh yesterday said, "Pakistan came into existence after India got divided on religious lines but it could not keep itself united. In 1971, it got split into two and, if it does not mend its ways, it will get splintered into 10 pieces and India will have no role in it."
"Indian government has erected a wall of hatred in the whole country. BJP government's hands are stained with the blood of innocent Kashmiris," he said.
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Khan went on to accuse India of openly interfering in Balochistan and other parts of Pakistan.
"We wish peace in the region, however, will not accept Indian hegemony," he asserted.
Khan claimed arrest of Kulbhushan Jadhav and other Indian agents in Pakistan is "clear proof of Indian meddling into Pakistan affairs."