Put into bat on a rain-hit day, Andhra held steady after losing opener Prasanth Kumar (7) early in the day.
In the 34 overs that were bowled, Srikar Bharat and Murumulla Sriram stood out with their patient knocks.
While Bharat departed for 47, which came off 82 deliveries and included six fours, Sriram was still at crease with a 91-ball 45 when stumps were drawn for the day.
Brief Scores:
Andhra Pradesh 1st Innings: 123/2 in 34 overs (Srikar Bharat 47, Murumulla Sriram 45 batting, Rishi Dhawan 2/40).