Indian states were bonded very close with the cultural and religious ties. A Sikh Empire was in Modern pakistan, but several of its religious places exists in Maharastra like in Nasik. Ever heard of Sufism, a maratha could serve under Sikh emperor. Sikh empire, or the Maratha empire are the geographical location of the kings whom they rule but does not confined people across the whole country. Language wise all languages are derived from Sanskrit. Religious wise Sikh is just a sect of Hindu. Unity in Diversity was the Mantra and still the Mantra.
We faces many attacks and forieghn rule but we are still standing tall with our Rich cultural heritage. which we can feel proud of.
Nothing is going to happen. Its a distant Dream, hope it didn't turn out to be another Kargil