The showroom, located opposite city police station on Phagwara-Banga road, was burgled yesterday, its owner Harjit Singh Parmar told police.
Parmar said the burglars had lifted the showroom's shutter with the help of a jack and decamped with 145 mobile phones of various brands.
A case has been registered under sections 380(theft) and 457 (lurking house- trespass or house-breaking by night in order to commit an offence punishable with imprisonment) of IPC, police said.
Meanwhile, Phagwara DSP Manpreet Singh Dhillon and City SHO Inspector Aman Kumar visited the showroom today.