Classify the states into four groups each having common frontiers with Pakistan, China, Myanmar and Bangladesh.
The states having common frontiers with the countries like Pakistan, China, Myanmar and Bangladesh are as follows
1. Pakistan: Jammu and Kashmir, Punjab, Rajasthan and Gujarat
2. China: Jammu and Kashmir, Himachal Pradesh, Sikkim, Uttarakhand and Arunachal Pradesh
3. Myanmar: Mizoram, Arunachal Pradesh, Manipur and Nagaland
4. Bangladesh: Bihar, West Bengal, Jharkhand, Assam, Meghalaya and Tripura