I think main strategic of centre govt should be to get north Indians states. Also all skill people from north India working abroad or in south India We should make point to have enterprise ship skills develop in north Indian states. With reducing poverty will reduce population problem.
It seems part of the problem is that all major sea routes is though south India. Thus industrial belt are better developed their
Govt should allow major airport/cargo centre develop only in Delhi but all also in all major capitols of north India( Chandigarh, shimla, lacknow, patna)
Let their be more land trade with centre Asia though china & Pakistan. Also a gas pipe line deal with Iran will do good for north India economy.
A sort of competition should be allowed with more powers to states to let people make more decisions in opening industries . A N-Deal passing is must, so that less polluted N-power stations are setup all over India