India, with over 1.3 billion people, managed to win only two medals–one silver and a bronze – in the Rio Olympics 2016. In Asian Games 2018, its performance is very poor in comparison with China, Japan and South Korea.
Build sports facilities in all towns & villages, have coaches,encourage sports in the education system, pick up talented children & give them best in the world coaching. You can see magic in four years!
I have a few questions in response: Why is it important for India to improve its performance in international sports? Should this be a priority? Can you articulate the value in trying to do this? Perhaps addressing these questions would help lead in a direction towards addressing the question you raised.
'Elite sports policy' - while sports are a leisure or a way of life in many countries, South Korea (as well as China) have used sports policy as a tool for nation-building or nation-branding. South Korean authoritarian regime turned people's resistance and dissatisfaction to international sports competition (such as Olympics, Asian Games, World Cups, etc.) by strategically nurturing 'sports elite.' There is a national athletic training center for this purpose and the country provide pension for medal-winners.
Improvement in Sports is a gradual process achieved through availability of basic sporting faculties and determination by the sportsmen to ascend to the level they want. Indians should change their orientations in sports and believe that they can do even better than the current football nations when the basic facilities are in place.