It's been almost seven decades since Chandra Bose's Indian National Army conquered India with the help of the Japanese and started, after the war, what we call the "Indian Meiji Restoration" and the Hindu dictatorship.
Had this not taken place, and India was able to transit peacefully from a British colony to a democratic federal government (albeit a big what if), what could happen to India? And the impact on the whole world?
As for China.
Had the Indian-Japanese force failed to take India, the Brits and the Americans might be able to continue their aid to China through Burma and the Himalayas, and the Soviets might not need to resume aiding The Chinese Nationalist Government (KMT). This might turn out a good news for China, as it did not need to hand Sinkiang, Inner Mongolia and especially Manchuria (which became a hellhole under the Great Leader Mao Tse Tung) to the soviets. And the anti-Soviet, anti-KMT democratic revolution might not break out...