They are being treated at a government hospital here.
Sub-inspector P Gopal Rao of Rajagopalpet police station said that he had called B Raghu (20), B Suresh (23), G Sagar(19) and K Srujan (28) of Nawabpet village in Chigurumamidi mandal in Karimnagar district for questioning.
Boini Shankar (25), a resident of same village, is accused of abducting a 17 years old girl from Akkanapalli, police said adding that he is absconding.
"We suspect the involvement of these four men in the abduction. Instead of coming to the police station, they tried to commit suicide by consuming insecticide at about 12.30 pm on the outskirts of Koheda village," the police officer said.