"There is more to Tech City than just the QDSC facility."
Yes there is, but you specifically addressed the building of the QDSC Facility and provided "real life reasons" for the construction delay.
The first "real life reason" you provided was Environmental, with a link to an article about air pollution in Assam.
So I responded with my reasons why I don't think that the QDSC Facility construction would be delayed due to concerns about air pollution in Assam.
Then you tried to change the subject to Tech City in general and stated that:
"That was just one example of new environmental regulations that India has implemented since the project has stated.
However that article discusses
No mention of new environmental regulations that India has implemented since 2018 that the QDSC facility or Tech City would need to be comply with. Just that Assam has a major air pollution problem that they are going to technically study and look for technical solutions for. Does India have environmental regulations that need to be complied with? Yes, but your example did not deal with any new regulations that could cause the construction of Tech City to be delayed.
"Do you believe that there are environmental regulations that most be signed off before the project is built?"
Yes, the projects need to meet existing environmental regulations and those regulations need to be incorporated into the design, just like the other building codes, but that is just part of the normal design and construction process. Do these need to be "signed off" before the project is built? Some like waste discharge or runoff permits may need to be signed off before construction starts, but most just need to be addressed before the project is completed.
Do you have any specific examples of new environmental regulations that needed to be incorporated in to the design of the QDSC facility or Tech City since the projects started two years ago?
Didn't Balchin say back in October that project funding is progressing as planned? If there had been major new environmental regulations that needed to be incorporated into the project, wouldn't that adversely impact the budget as planned?
In my experience, if changes don't impact the budget, then they don't delay the schedule.