New Delhi, Feb. 4 -- An India-based entrepreneur, Dhananjay Yadav, was left "baffled" after his application for a B1/B2 visa - a temporary non-immigrant visa for work purposes - was rejected despite him submitting all relevant documents. Yadav, the co-founder and chief executive officer of NeoSapien, the company behind a wearable AI device that tracks conversations and analyses emotions, said he had applied for the US visa in New Delhi after receiving an invitation from an investor who is also a close friend.

"I had an invite from a close friend and investor in NeoSapien, Hari Valiyath (Co-founder, Pyxis), to meet him and potential partners. Pyxis has raised over $200 million, and is US-based," Yadav told Mint.

The investor, Valiyath, h...