I wouldn't say that this comparison is absolutely correct. You can't simply say that some country has a dictatorship while another is a democracy. Simply because the dictatorship and democracy are not mutually exclusive. This will sound funny, but dictatorship can be democratic.
India never had a military coup, and the governments were elected in without any election fraud or vote rigging. The army is not very powerful in India. Moreover, India is regarded as one of the best examples of parliamentary democracies in the Asian region. China, on the other hand, was an absolute dictatorship until the early 1990s.
I agree that there can be some cases, where the dictatorship and democracy are not mutually exclusive. But that is not the case with both India and China.
