Power was missing for 12 days for certain sections of it : https://www.tbsnews.net/bangladesh/energy/bangabandhu-hi-tec...
Across the border in West Bengal, a similar concept in Salt Lake City has done relatively well https://www.flickr.com/photos/debashissaha/8637092181/in/pho...
tbf, Salt Lake is the only place in east india with mncs like IBM, Samsung etc
As long as there is road/rail infrastructure and cheap housing close by, tech workers will flock. The foundation need to be setup first and I guess that's what was missing here.