You really need to post with better grammar. It's tough to read your posts.
US will remain our biggest challenge this century. India will not overtake US or China this century. India has massive internal problems with overpopulation, no resources, no space, dozens of separatist movements, pollution without industrialisation, Hindu culture of corruption and god worshipping over economic development, caste system, illiterate population, etc.
Sorry, but no one in China even compares ourselves to India and don't even consider India even a challenge. US is our comparison.
India will be a big power but no where near the power of the US and China.