Capitalism is the most efficient way to organize economy. The pragmatism, flexibility and ruthlessness of capitalism makes it the most successful method of wealth creation. Thus, right can serve India by creating wealth through capitalism.
But capitalism is inherently unstable. It creates huge economic inequality. This inequality creates social and political unrest. Left provides stability to society as it transfers wealth to the poor and middle-class.
The transfer of wealth by left is done by government spending on Infrastructure, Health, Education, Agriculture, Housing, etc. This transfer of wealth brings prosperity created by capitalism to the rest of the society. This stabilizes society by reducing desperation and bringing some comfort.
Thus, Right can serve society by creating wealth through capitalism. And Left can serve society by taking care of it through government spending.