A girl student, who had to remove her innerwear to appear for NEET here on May 6, has filed a police complaint, alleging that an external observer stared at her "inappropriately".

The student, who appeared for the National Eligibility-cum-Entrance Test conducted by the CBSE at Lion's school at Koppa, had to remove her brassieres along with some other girls as they contained metal hooks, before writing the test. According to the complainant, a male external observer kept staring at her inappropriately.

"The invigilator came and stood before her several times. He did not look at her face... but at her chest. She tried to cover herself with the question paper," her sister told television channels. "My sister was mentally tensed. The invigilator came near her two to three times... she found it difficult to write the exam properly, she was uncomfortable," she said.

A case was registered under IPC sect 509 (eve-teasing by word, gesture or act intended to insult the modesty of a woman), and investigations have begun, police said.

Police said they have begun investigations and are trying to talk to students who had appeared for the test in the same school.