​the Indian firm which claimed to be selling the world's cheapest smartphone

Mohit Goel was held after one of the phone's distributors claimed it had not received handsets it had paid for.

The Freedom 251 phone, priced at 251 rupees ($3.70), went on pre-sale in February 2016.

But while many customers got their phones, Ringing Bells is accused of not fulfilling all of its orders.

The distribution company, Ayam Enterprises, said it paid 3m rupees ($45,000) after Mr Goel persuaded it to distribute the phone. But only 1.4m-worth of devices were delivered.

Police spokesman Rahul Srivastava confirmed the arrest to the BBC. "A number of similar complaints have been filed against him from other parts of the state. We want to investigate these claims thoroughly," he said.

"It's important for us to expose these scams because innocent people end up losing their hard-earned money. We are seeing an increasing number of technology-related frauds. I appeal to people to be sure before investing money into such schemes."

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