Kashinath Tapuriah at his home after the raid on Monday. A Telegraph picture

The enforcement directorate on Tuesday froze three bank accounts of businessman Kashinath Tapuriah and his wife in connection with the probe into the alleged black money trail of Pune-based stud farm owner Hasan Ali Khan.

“We found a joint account of Tapuriah and his wife Chandrika in a nationalised bank. The couple have two other accounts in private banks. Nearly Rs 1 crore is deposited in these three accounts,” said an enforcement directorate official.

The investigators have asked the authorities of the three banks to not allow any transaction related to the accounts.

According to sources, the sleuths have also unearthed information about a Swiss bank account in Tapuriah’s name. Directorate officials refused to disclose details of the account.

A team of 13 from the directorate, led by deputy director Bijay Kumar Mallik, had raided Tapuriah’s Short Street flat for over eight hours on Monday.

“The raid was a part of the probe into how Khan diverted money to foreign banks. We have learnt that Khan was in touch with Tapuriah,” said an official. Khan has been declared the country’s biggest tax defaulter with dues of more than Rs 50,000 crore. Khan has also been accused of illegally channelling around $9 billion to foreign banks.

“We seized a diary from the flat that contained some names. The same names emerged during Khan’s interrogation by our counterparts in Pune. We have enough reason to believe that these people were associates of both Tapuriah and Khan,” said a sleuth.

The team had also seized Tapuriah’s laptop and cellphone from his flat.“We will send the laptop to forensic experts to retrieve data from the hard disk. We will also examine the call records of Tapuriah’s cellphone to find out who were in touch with him,” added the official.