India's army will survive whatever Pakistan throws at it and will then march across Pakistan, should this thing go hot.
Musharrif knows this fact, and that's why he's started arresting the Islamic militants behind the attack on India's parliament (to try to avoid war). Pakistan also knows that because of India's greater military, that they have to strike first with nukes and then have China bluff India into backing down (if war can't be avoided); otherwise the renegade provice of (West) Pakistan once again becomes part of Greater India.
I'm sure it was a typo ... but U235 is the fissionable one. U238 will NOT go boom