A Bollywood actor and a YouTube influencer are among dozens who have been banned from participating in India's share market.

The market regulator said it made the decision after investigating allegations of price manipulation.

It said videos on four YouTube channels were used to artificially inflate values of certain shares.

Actor Arshad Warsi, implicated in the case with his wife, denied the allegations.

In its investigation, Securities and Exchange Board of India (SEBI) said it found that YouTube channels The Advisor and Moneywise - owned by influencer Manish Mishra - used celebrities to recommend stocks of two companies to retail investors.

Similar videos were uploaded on the channels Midcap calls and Profit Yatra.

The videos shared false and misleading information about Sharpline Broadcast and Sadhna Broadcast, encouraging investors to buy their shares, the regulator said.

SEBI says that its investigation revealed that these channels had hundreds of thousands of subscribers and their videos - aided by paid marketing campaigns - were viewed by millions.

Entities involved in the price manipulation made profits by selling their own shares while the prices were high.

The market regulator said it has impounded illegal gains worth nearly 540 million rupees ($6.5m, £5.4m) made by people and entities involved in the scam.

According to SEBI, Warsi made a profit of 2.9 million rupees and his wife Maria Goretti earned a profit of 3.7 million rupees.

On Thursday, Warsi tweeted that he and Goretti had "zero" knowledge about the stock market and had lost "our hard earned money" after investing in shares on a third party's advice.

According to the newspaper Mint, the videos are no longer publicly available on YouTube but are on SEBI's records.

BBC News India is now on YouTube. Click here to subscribe and watch our documentaries, explainers and features.

• ·ISIS-inspired terrorist who killed eight with truck in NY is convicted
• ·Yellen warns US could run out of cash in a month
• ·Springsteen explores Irish roots in County Kildare
• ·Why an Indian comedian is challenging fake news rules
• ·British woman is found dead along with Swedish man in a tourist acomponentment in Portugal, sparking police investigation 
• ·Sudan Briton criticises UK evacuation response
• ·Pan Am hostage learns from hijacker why life spared
• ·Oldest convicted Nazi criminal dies at 102
• ·Fashion giant Uniqlo to raise pay by up to 40%
• ·Emmet Till's mother talks about her son's trial
• ·Cuba cancels May Day parade because of fuel crisis
• ·Last UK flight leaves Sudan as rescue effort ends
• ·Football club to train teenagers in Pakistan
• ·In Khartoum, desperate attempts to flee
• ·US Army grounds its aircraft after fatal crashes
• ·How do you evacuate people from a war zone?