For centuries England followed the policy of balance of power. When there were wars in Europe it joined a side that was weak. It benefitted from that policy and became a world power.
It is time for India to follow the policy of balance of power. After the end of Warsaw Pact and disintegration of USSR, USA-led NATO has dominated the world. Russia is unlikely to be a superpower. Alcohol and abortions have weakened Russia. Countries attacked by USA or NATO are helpless. India can provide leadership to such countries. India has nothing to gain by supporting NATO except in Afghanistan. However NATO is fighting a losing war in Afghanistan and if NATO withdraws it is best for India not to get involved. It is unlikely that UN Security Council will be expanded soon and India’s chance of getting permanent membership of it is slim.