I think there is too much of regionalism in Indians (people and politicians) today. Even in this article that was linked, I am seeing negative comments about Malayalis in karnataka, disputes about "Kudla" name, etc.
This is very demeaning and undermines everybody's status as an Indian. It was very difficult to achieve national integration and bring about a nation as diverse as India, yet we see disputes over petty conflicts. Have the past 100 years taught us nothing?
I am a South Indian by birth, but you will never be able to tell by looking at my face, body or the way I speak. Even in my so-called "hometown", I speak Hindi (and English, even though I am quite fluent in my South Indian language). I do not care if it annoys someone, it is our national language and I have learnt to accept it (perhaps my family also has a hand in this since my family is liberal and multicultural).
These issues mean nothing to me. My personal opinion is that we should learn to respect our collective pasts. More importantly, we should respect the names our cities had when we actually became a country instead of what we had when there were disproportionate petty Rajas fighting against each other.
Instead, since 1960 we have been on a slow course of divide and rule, pitting communities against each other. This is unsustainable for all the peoples involved. None will benefit from this in the long run.