Service tax on under construction properties.

Team LCI, Delhi High Court had passed a judgement on removal and refund of service tax to flat buyers for under-construction properties. Is it applicable for Mumbai/ Thane? I have brought a under construction property in Nov 2016 and possession is due by 2019. Have been paying Serv Tax from time to time as per demand raised by builder... Can we ask for a refund basis this order of Delhi High Court? Now GST is applicable, But, for Service TAx paid prior to Jul 1, does the builder have to refund?