India's AI Impact Summit, billed as a landmark gathering of global leaders and technology executives, was overshadowed by logistical chaos on its opening day in Delhi on Monday.

Participants complained about long queues, overcrowding and confusion at the venue, saying they had to wait for hours. Some also reported limited access to food and water and said their products were stolen from their stall.

The five-day summit, inaugurated by PM Narendra Modi, is being promoted as the first major international AI meeting hosted in the Global South.

More than 100 countries are taking part, with technology leaders including Sam Altman of OpenAI and Sundar Pichai of Alphabet Inc expected to attend.

Speaking at the inauguration, Modi said the summit showcased "the extraordinary potential of AI, Indian talent and innovation", adding that India aimed to shape solutions "not just for India but for the world".