THIRUVANANTHAPURAM: Wearing ultra low-rise jeans could be a "criminal" act in Kerala. Youngsters in Chavakkad in Thrissur district realized it the hard way when they were booked by local cops citing "public nuisance" for "exposing" their undergarments."Women, school authorities and others have been complaining about this for some time. Boys wear ultra low-rise jeans and do not tuck in their shirts, which are usually short. So while boarding a bus or holding on to the overhead railing, their underwear is exposed. This amounts to indecency," Chavakkad SI of police Abdul Muneer said.He said it was only when the "situation was gross" that they are fined. "Otherwise we let them off with a warning," he said. Muneer said the trend was mostly visible among youngsters from the coastal areas in the district. "They are not very educated and have the tendency to mimic what is shown on the screen," he said, adding about 50 people had been charged so far.