ok...lets imagine a situation when paksitan makes a nuclear strike against India.Now, remember nuking another country is not a joke,No sir its not.The only country that has used Nukes i.e USA still faces criticism over its actions,and we are talking about bombs 100 times bigger than those.So if and when pakistan uses nukes,it won't be wrong to assume that it would be launched in the middle of war b/w both the countries,further the assumption can also be made that uptill that time in the conventional war ,india would be having an advantage.Indian forces most probably have entered pakisitan or about to enter its territory.So lets see the possible scenarios :
1) Indian forces thoroughly defeated pakistan forces,in desperation and as a last resort pakistan resolves to use nuclear weapons against india.It sees that only way it can survive is by taking away all indian retaliatory strike option.It launches multiple nukes as some of pakistani's pointed out to various installation all over india.But,they forget one thing,we are not dunces over here.India already knows that this scenario might come,they have moved over their strike capabalities to a relatively unknown place.After the pakistani's strikes,India responds.Result : Say bye bye to subcontinet
2) Instead of multiple strikes,pakistan makes two or three sites at key cities like Delhi and Mumbai.India responds with multiple strikes as it has gained the right to self Defence.Seeing the chance,India chooses to eliminate the pakistan problem once and for all.
Result : Bye Bye pakistan,Half of India,some pieces of Afghanistan
3) Same scenario as above but pakistan uses Afghan bases to launch, which is Highly dubious,we are not talking of normal strikes but Nuclear strikes,and that also against a country which Afghanistan is friendly with.Still ,as we are firmly in the realm of fantasy,lets imagine Af bases are used.India response is same but this time both pakistan and afhganistan are the reciptients.
Add afghanistan to the above conclusion
4)This one is for my pakistani friends.Pakistani's attack india with multiple nuke strikes.All of india's retailatory return strikes capabilties are crippled.So is almost all of India...everyone Dead.The world realizes that there is a maniac with nuclear weopns,its like a kid has been give a magic wand with a default 'Aveda kedavra' spell installed.Nato,Russia and China(yes even china will get scared by pakistani's actions) decide that it has to be contained.They agree that the only way to take care is to nuke pakistan.These guys havs ICBM,sub-launcher.Multiple strikes launched deep into pakistan.
Result : Bye bye india,pakistan,large chunks of afhanistan,srilanka,some parts of bangladeh and yea after so many nuclear strikes we can also add mother earth also to the list
Al considered even a single nuke used (which i play to god never happens) will have atleast one definite outcome :Bye Bye Pakistan