GST has been a game changer. Post GST, there is no phobia to commitment. One of the biggest challenges, a developer faces is that no customer was willing to lockin a lease tenure for more than two to three years.
With GST coming in, everyone has got their own supply chain mapped out which actually enables them to go and commit in the infrastructure bid. It is a big cost and if a service provider was given an option of operating out of a world class facility where the developer grows with him and warehouse requirements grows with him either vertically or horizontally, every provider would be happy to stay.
This tax regime has given the push to developer to invest more in properties or parks where one can do quality real-estate development. The local state laws do vary from state to state, GST does have an impact on the construction cost.