Rush hour driving from South City to Salt Lake (Calcutta)

Hi,

I'm most likely going for a long-term contract to Salt Lake City (IT Park) and am now looking for possible areas where to settle. Would be good if someone would be able to give a rough estimate on how long normally it would take to drive for example from South City or Ballygunge areas to the IT Park in Salt Lake City during the rush hours? I tried to search this in the internet but without success.

Kalle