Recently, the famous poet 'Vishnu Narayanan' of which language has died?

When is 'World NGO Day' celebrated every year?

Recently, Indian player 'Vinay Kumar' has retired from which international sport?

When is 'National Science Day' celebrated every year?

When was India's first Human Development Report (HDR) released?

Who introduced the concept of Elasticity of Substitution?

Which is the biggest item of expenditure of the government in the revenue account?

When was the Consumer Protection Act passed in India?