Opposition members in Lok Sabha on Wednesday slammed the government for not taking up an amendment in the Finance Bill to withdraw the 18 per cent GST levy on medical and life insurance premiums. Opposition MPs staged a walkout from Lok Sabha after an amendment moved by RSP member N K Premchandran seeking removal of 18 per cent GST on medical and life insurance premiums was not taken up by the House during the passage of the Finance Bill. Finance Minister Nirmala Sitharaman, who piloted the Finance Bill, said any amendment in GST has to be approved by the GST council. "Specific demand of the entire opposition is to withdraw the 18 per cent GST on life and health insurance schemes for which I had given an amendment. Normal procedure of the House is that the amendment is circulated only if it is admitted," Premchandran told reporters outside Parliament after the walked out by the opposition MPs. "This was circulated yesterday itself. This gives a message that it has been accepted, or