Waziristan? Yes, Balochistan? No.
Balochistan is 40 percent of the land of Pakistan, and holds most of the natural resources in the country. An independent Pakistan cannot live without Balochistan. Waziristan, we don't really need, but it's good to have as a buffer zone between Afghanistan and Pakistan.
India only needs J&K as a buffer zone between Pakistan and India, which is why India considers it an integral part of India.
Let me repeat myself, you guys should really try and understand my point before commenting. If you understood, you wouldn't make such ridicules comments that try and compare fruits with chairs.