Hindustan was a called a golden bird, which means they were the richest in the whole world. And it was this wealth which other religions, that were formed later(how i dont know, their ancestors may be having roots in mahabharat?)had an eye on it, and later seeing the knowledge , wealth, talent and beauty,etc, they captured mahabharat by force and tried to make the people change their religion. But after seeing their culture and strong foundation, they infact picked up some good values and created their own.They knew that changing them completely to theirs, would be like cutting the branches alone and not the roots, since they are so deep. Tell me will u allow anybody to stay in your house for ever, i believe no, so how u say for invading one needs brain, no- it is just power, force, otherwise why there were so many battles faught, just for nothing......Hindus have never gone places to capture or rule forcefully. They have won the hearts of mughals, Britishers and they finally had to go away, but they left behind their footsteps in the form of their religion, so my brother down the history u analyse your roots, what were they.... Jai hind
