New Delhi, Mar 27: The Bharatiya Janata Party (BJP) on Tuesday demanded an apology from Congress president Rahul Gandhi after Christopher Wylie, the whistleblower who blew the lid off the Facebook data-mining scandal, said that his former employers, Cambridge Analytica, had worked for the Congress party.

Wylie reportedly revealed this as he was deposing before the British parliamentarians. He added that the company had an office in India. He also offered to provide documentary evidence to support his claims.

Reacting on his comment, Union minister Ravi Shankar Prasad said Wylie’s revelation exposed Congress President Rahul Gandhi. “Today the whistleblower Christopher Wylie has confirmed that Cambridge Analytics worked with Congress. This has exposed Rahul Gandhi who was denying it all along. Congress and Rahul Gandhi must now apologize,” he said.

Wylie told the UK Parliament that the Congress party was a client of the disgraced company. He said the company undertook regional projects for the party in India. He further said that the company had offices and staff in the country.

“I believe their client was Congress, but I know that they have done all kinds of projects. I don’t remember a national project but I know regionally. India’s so big that one state can be as big as Britain. But they do have offices there, they do have staff there,” the 28-year-old said.

The world has been taken by storm after the whistleblower revealed that Cambridge Analytica had fraudulently acquired data of over 50 million Facebook accounts and used it to sway elections in favour of Republican candidate Donald Trump, who later went on to become the President of the United States.

The revelation has been a major cause of embarrassment for global giant Facebook. Its owner Mark Zuckerburg issued a public apology for his company’s failure to protect users’ data.

“We know that this was a major violation of peoples’ trust, and I deeply regret that we didn’t do enough to deal with it. We have a responsibility to protect your data — and if we can’t, then we don’t deserve to serve you,” he said in a Facebook post.

India’s IT minister, Ravi Shankar Prasad had issued a stern warning to Facebook CEO Mark Zuckerburg. He said the country won’t tolerate any attempt at influencing elections, and that the Facebook CEO could be summoned to the country if need be.