Who had used the concept of 'Jail cost of living' to estimate poverty line in India ?

Who among the following was the first in pre-independent India to estimate and discuss the concept of a Poverty Line?

Which among the following committee’s recommendations are used for estimating the poverty line in India?

Which of the following fixes the poverty line in India?

Which of the following determines the poverty line in India?

The Government of India constituted a committee to set new standards for the estimation of population living below the poverty line. Who was the chairman of this committee?