Inevitable my foot.. As long as we in Tamilnadu don't ask for Independence India is safe and secure. Kashmir or puny Nagaland don't have the economical or political might to engender division. Mark my words as long as South India is comfortable footing bill for BIMARU and Tamilnadu owes alligence to Indian union the only thing inevitable will be to strngetheing of India as a union.
Frankly it is your opinion and to tell you the truth a lot of Indians I met do feel that if Pakistan breaks up it will result in peace and prosperity in South Asia. Frankly it is your opinion and their opinion and who gives a hoot to it.
IPF
Breaking up into smaller nations makes no sense to me too , once a poor state breaks off there is no central funding and then it has to go with a begger bowl to the World bank and IMF
Development is the answer to everything , it is a common trend that can be observed that the least developed and un-educated area of a country is the most rebellious one.
Bihar , WB , Madhya Pradesh , UP , Nagaland , assam , Kashmir seriously lack healthcare , education , Industry and that'll lead to factions and so called "lower castes" cribbing about a host of mindless issues.
Bring in Industry , Schools , Employment , hospitals , Roads , Transportation , modern technology and see the change.
Look at Punjab and how far it has come from the days of Khalistan to be Indias Numero Uno State.
If someone still thinks breaking up into nation states make sense then please take a comprehensive look at the state of smaller nations surrounding India and far forward they have come and then look at the Peoples Republic of China and what they have done with a vast Nation. The answer will be there in front of you .