However, the girl escaped unhurt as the bullets missed the target.
According to police, Sunil Gautam reached the house of the girl and proposed to marry her to which her parents objected.
Following this, Gautam shot at the girl, however, the bullets missed the target and the girl's younger sister received pellets in her body, they said.
The youth fled from the spot after the incident.
An FIR has been registered in Sihani Gate police Station against the youth under sections 307 (attempt to murder) of the IPC, SHO Ranveer Singh said, adding, efforts were on to nab him.