It does tell you how far fallout will go, try airburst or ground burst. I guess you don't know that uranium and plutonium are not exactly very prone to air borne distribution to a large area. There is a reason why nuclear fuel from Fukushima is not spreading to whole of Japan.
150 bombs with 60 kiloton will kill a lot of Indians but 150 bombs on Pakistan will make most of the inhabitable area with access to water ie the green belt around Indus worthless for quite sometime, making Pakistan incapable of reviving after nuclear war.
Not according to the website you posted. 70% of india was bombed back to vedic ages by 150 nukes. We are not even counting chinese nukes, that would wipe your race from the face of the earth.