A woman complained that the trio charged Rs 25,000 for conducting the test, he said.
Acting on the complaint, a team of PCPNDT cell of medical and health directorate today laid a trap and arrested all the three for violating Pre-Conception and Pre-Natal Diagnostic Techniques Act and conducting foetal sex determination test, he said.
The accused have been identified as Dr Bhanwar Lal Singothia, an Ayurvedic doctor, his son Ram Prasad and a tout Savar Kanwar, he said.