"That is just a pretext. It was not the first time that meetings with Hurriyat leaders took place. It is been happening for decades," Tasnim told PTI.
She was replying to foreign secretary Sujatha Singh telling Basit to not to go ahead with the meeting in New Delhi and to choose between dialogue with India or with the Kashmiri separatists.
"The high commissioner of Pakistan did not interfere in India's internal affairs. Pakistan is not subservient to India. It is a sovereign country, a legitimate stakeholder in the Jammu and Kashmir dispute," she said.
Aslam, who has previously served in India, asserted that "Kashmir is not part of India".
"It is a disputed territory. There are numerous UN resolutions," she said.
Pakistan had on Monday described the cancellation of next week's foreign secretary-level talks as a "setback" to Indo-Pak ties.
The remarks came after India called off talks between foreign secretaries of the two countries scheduled to be held in Islamabad on August 25, telling Pakistan bluntly to choose between an Indo-Pak dialogue or hobnobbing with the separatists.
India cancelled the talks, raising strong objections to consultations held with separatist Hurriyat leaders by Pakistan's high commissioner.