Maharashtra Deputy Chief Minister Ajit Pawar has written to Union Finance Minister Nirmala Sitharaman seeking Goods and Services Tax (GST) exemption for some medical equipment used in the fight against the novel coronavirus outbreak.In a letter, Pawar asked Sitharaman to exempt 3-ply masks, N95 masks, personal protective equipment (PPE) kits, testing kits, ventilators and other equipment from GST.