A 13-year-old boy has been pictured cleaning toilets inside the stadium where UNICEF'S World Children's Day celebrations were taking place.
The sobering photograph shows the schoolboy wearing a hi-vis orange vest over his clothes as he mopped the floors of the Thyagaraj Stadium in New Delhi, India.
As he worked away behind the scenes a group of excited children enjoyed a game of football with cricket legend Sachin Tendulkar in the main part of the stadium.
He spent the day cleaning the men's bathroom and loading and unloading water canisters during the event.
The unnamed boy, who lives near the stadium with his parents, elder sister and two younger brothers, told the Indian Express that he felt left out of the celebrations, adding: 'I'm not feeling very good.'
He said that his mother sent him to work there for the day and that he would be paid 350 rupees (£3.85) for the shift, which started at 8am and finished at 5pm.
The boy said: 'This is the first time I am working, I go to school usually.'
Thyagaraj Stadium, which is run by the Delhi government, outsources its regular cleaning to an outside company, ACME Excellent Management.
But when contacted an ACME spokesman said that housekeeping staff at the UN event were not hired by them, and that event organisers bring in their own housekeeping staff.
MailOnline has contacted UNICEF for comment.
A spokesman for the charity told Indian Express that they have a zero tolerance policy for children working and that they will be investigating the claims.
He said: 'We follow a strong due diligence process with all our partners and suppliers.
'Our event organiser Indebo has made it very clear that the boy had not been hired through them… we will be writing a letter to Thyagraj Stadium authorities expressing our discomfort that something like this happened, and will also investigate whether this lapse was by the stadium or our supplier'
This article has been adapted from its original source.
© Associated Newspapers Ltd.