You don't kill Chinese eating beef inside India!! You kill Christians and Muslims. No matter how much trade India does with China, it is irrelevant as you just have some border disputes. You also don't refuse China's existence as a "broken part of India".
With Pakistan, you have deep rooted hate of 7 decades, religious. cultural and other differences that are shown to Indian minorities everyday, and as of today. To a point, where a lot of people from minorities have left, and are leaving India, so they don't have to suffer or get killed if they didn't convert (ask the Sikhs, Christians or the Muslims). The Indian ISIS is on the rise, and includes the RSS, Shiv Sena and BJP's, trying to create One Hindu India (like ISIS wants One caliphate).
Its pretty sad to see the killing of Indian citizens by ruling Hindu fanatics!! I am a big fan of trade, but in this regards, due to the history, trade with Pakistan would include spread of anti-Pakistan elements, RAW's agents and weapons (smuggled) into Pakistan.
This open trade / transportation was one of the main reasons that were identified before, by Pakistan's law enforcement agencies, as a root cause of the rise of RAW based terrorist elements to begin with inside Pakistan.
So trade is good, it'll bring the people together and will create some peace if done right (filtering out RAW's purposes). But from what I am reading and assessing, Pakistanis don't need India to grow, and they do want trade, but limited one. Not allowing thousands of trucks in every month that might have smuggled weapons and people they can drop off on the Pakistani side and make them disappear, causing pain on Pakistan's end!!.
As much as you like to color it otherwise, as of today November 04, 2015, all of the above are Pakistani territories, and will remain so. No signs of any of thee becoming like Indian Kashmir, with 7 soldiers to 1 civilian!!!! And you call that your state.
Should I now move to the recent situation in Bihar, Gujrat, Asaam, Nagaland, Maharashtra, etc, etc???? The list goes ON and ON!!