The similarities between India and Pakistan are
1. Both countries are in South Asia.
2. There are similarities between Hindi and Urdu, which are the two main languages of the two countries.
3. There are cultural similarities between Pakistan and India.
The differences are
1. India is a democracy where the civilian government controls the army. In Pakistan, the army exerts a much more important influence on the government.
2. The economy of India is much bigger than that of Pakistan.