Tags: 'declared items',
'Kelkar Committee',
'differential sales tax',
'MPNG',
'feedstock policy',
'central sales tax (CST),
'T. L. Shankar Committee',
'JPC on fertilizer pricing',
'reasonable & realistic basis',
'shortfall in calorific value (CV)',
'computation of discount',
'pressure of gas',
'royalty/ taxes & duties',
transport charge