The Kolkata-based workers were arrested earlier this month following a data security review by the London-based firm, which then alerted Indian police.

The arrests came months after TalkTalk was hit by a high-profile hacking in October last year when personal details of its customers were compromised. But the company have indicated that the latest arrests in India are not related to last year’s data breach.

We are also reviewing our relationship with Wipro," TalkTalk said in a statement.

"Wipro is committed to maintaining the integrity and confidentiality of all customer data and has a zero tolerance policy on security breaches," Wipro said in a statement.

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