The youth had visited the hospital on March 13 after suffering from urine infection.
However, the hospital authorities have denied the charges although they are conducting an inquiry into the matter.
Shekhar, a resident of Prempur has alleged that a ward boy named Rajesh along with some others had sterilised him, said Dr RK Saxena, director of Ursula Horsman memorial hospital.
After a few days, he experienced pain again, he went back to the hospital where he was informed that he had been sterilised.
The hospital director, however, said that there was not much substance into the youth's claim as he kept changing his story and appeared to be mentally unstable.
We are conducting and inquiry and going through all our records, said the director.
A 20-year-old girl was stabbed to death allegedly by a jilted lover in east Delhi this evening, police said.