Tags: 'inter-state sales',
'link to IMPP of feedstock',
'value added tax (VAT)',
'anomalies in fixing ex-refinery price',
'new fertilizer policy',
'customs duty on naphtha',
'marketing margin',
'zonal movement charges',
'port handling charges',
'marketing costs',
'differences in ex-refinery price',
'freight & local taxes',
'Group of Ministers (GoM)',
'central sales tax (CST),
Group-wise uniform concession'