Add Multi Vehiclespost https://api.sandbox.co.in/ewb/tax-payer/seller/bills/{ewb_no}/multi-vehicle/addAdd Multi Vehicle DetailsRequest Body Example JSON{ "ewbNo": 171002233847, "groupNo": "32", "vehicleNo": "PQR1234", "transDocNo": "1234", "transDocDate": "12/10/2017", "quantity": 15 }