K Balakrishna (31) and his wife Sri Ganga (25) drank pesticide-laced cold drink last night at their residence in Annapurnamapeta area and died, a police official said.
They have an eight-month-old son who is safe, he said.
The couple was into cloth business and they had reportedly suffered financial losses recently. This may have prompted the husband-wife duo to take the extreme step, the official added.