What do yo mean "If Dalits rule this country, India will no more be a democracy." ??
It will be true democracy if dalits are elected to the top posts. They will look after their community very well and help building a strong nation. I'm not supporting Mayawati as a person but in general every caste and community needs to have their own representatives. Thats the true sense of democracy. BTW, look at yourself first and see where do you fall in the original caste structure in the Hindu society. Look at yourself before commenting on others