New Delhi, April 12 -- India's IT major HCL Group marked its 50th anniversary with a special live concert by singer Arijit Singh on Saturday. The private event, held for employees of HCLTech, celebrated five decades of the company's journey from a startup to a global technology firm.

Videos from the celebration have gone viral on Instagram, showing Arijit Singh performing some of his popular songs at the high-energy event.

One Instagram user shared a clip with the caption, "Level hi alag hai boss. Feel, voice, vibe - sab next level." Another wrote, "This is how HCL Technologies celebrates 50 years.Lights. Music. Arijit Singh on stage. Goosebumps."

Billionaire founder Shiv Nadar was also present at the event. In one video, he was seen s...