Electing to bat after winning the toss, the two openers toyed with Andhra bowling and scored runs on either side of the wicket.
Deep Das Gupta was out for 48 with nine hits to the fence while Arindam Das made 69 with six hits to the fence off the 187 balls he faced.
The middle order failed to capitalise on the flying start given by the opening pair and wickets fell in regular frequency and team ended the day with 206 for 6.
Only Lakshmi Ratan Sukla stood his ground and was unbeaten on 51 with the help of five fours when stumps were drawn.
For hosts Md Faiq and Venugopala Rao claimed two wickets apiece.
Brief Scores: Bengal 206 for 6 in 90 overs (Arindam Das 69, Deep Das Gupta 48, Lakshmi Ratan Sukla 51, Md Faiq 2 for 54, Venugopala Rao 2 for 35) Vs Andhra.