How about this Office-Time connectivity from Santragachi to Sealdah....
The train goes via Bankranayabaz, Bhatta Nagar, Rajchandrapur, Bally Ghat, Dakshineswar, Dum Dum and Bidhan Nagar Road....
The train departs daily from Santragachi at 10:15 hrs. and arrives at Sealdah at 11:15 hrs.