Saibaba Colony police have arrested Chitra, 40, and Nagalakshmi, 40, both from Madurai, on charges of robbing bus passengers. In the first incident, Chitra robbed Periyanaickenpalayam resident Parimala Rani of Rs. 1 lakh. As she got down from the bus and tried to flee, Rani raised a cry, which the commuters at the bus stop heard, and then caught and handed over Rani to the police. In the second incident, Nagalakshmi, who robbed passenger Anasuya, was caught and handed over to the police.