After 72 years of partition, the current and future generation of Indian Muslims have no political affinity towards Pakistan. They do have a religious, cultural and linguistic affinity, owing to the overlapping similarities within these segments.
For Muslims in India, Pakistan is another Muslim state like Saudi Arabia, Somalia or Turkey. They wish them well in their future and hope that it becomes a good Muslim country and the people there are good and devout Muslims.
For most Indian Muslims, their first exposure to Pakistan is when they were chided in school or in public as "saala Pakistani" or "go to Pakistan". At first you are confused as to why is Rahul and Siddharth calling you a Pakistani. So you go to your parents and ask them as to why am I being called a Pakistani and what is Pakistan. Your parents give a vague answer, and tell you to ignore what was said to you. Then comes an India-Pakistan cricket match, and you are whole-heartedly supporting India, only to be accused by your friends of supporting Pakistan.
As you grow older, the taunts and chides continue, and you keep getting more and more disgusted with Hindu society. All this time, you have never met a Pakistani or let alone seen Pakistan. But by this time, you have read Indian and world history and at the same time learn to do math. Then you realize that if Pakistan and Bangladesh was a part of India, then we Muslims would be stronger and instead of being 15% of the population, we would have been around 40%, and so maybe we would not have been taunted by the Hindu community. Simplistic thoughts, I know!