K Shiva Kumar (23), an engineer employed with one Mega Engineering, and labourer, K Ravi (28) were working along with others at water grid scheme on outskirts of Sarvaipet village under Mahadevpur police limits yesterday, nearly 160 kms from here, Kataram Circle Inspector G Sadan Kumar said.
While attending water grid works, Kumar and Ravi accidentally slipped into the river at around 6 PM. Soon, other workers rushed to their rescue.
A police team also reached the site and engaged swimmers to retrieve the bodies.
Kumar hailed from West Godavari district in neighbouring Andhra Pradesh while the labourer Ravi belonged to Warangal, he added.