is builder liable to take GST

Sanjay Thakur (19 Points)

09 January 2018  
I have purchased a flat from landlords part and agreement made in may2017 and registry made in November 2017. part payment was in may and balance paid in July. landlord praising me to pay GST to Builder. Is builder liable to take GST from me? kindly clarify me this matter is under GST ACT OR NOTE.