I live in kolkata and swabhumi is famous as many events are organised there and marriages , dandiya exhibition all happened there.it is beautifully constructed.i have heard there was some fraud alsp but cant comment until if you dont know the full truth.but taking about construction it is famous and best one as swabhumi is the biggest example of it.there are many other construction of there in other areas which is also good.i personally admire there construction.customer service is definately good.