The clash took place when some students were pasting posters in favour of one group near the main gate of the college, they said.
"The clash which started with hurling of abuses among students soon became violent as other students rushed in support of their group," said Superintendent of Police Simardeep Singh.
"Few students who came later with firearms opened fire which hit Hardeep. He was rushed to local hospital where he was declared brought dead," he said.
A college representative claimed that Hardeep was not a student of their college and "most of the 25 to 30 youths involved in the clash were outsiders".
"The gate of the college was closed today due to some talent show function. Some outsiders tried to enter the college premises in spite of security guard deployed there," he said.
Police said most of 28 CCTV cameras installed in the college's campus premises, including near the site of clash, were found to be out of order.
Disclaimer: No Business Standard Journalist was involved in creation of this content