"We are working on the due process of law to bring Mallya back to India," the Union Minister of State for Finance told reporters here.
He and Union Urban Development Minister Venkaiah Naidu were here to talk about the achievements of the Narendra Modi-led government's two years in office.
"We have declared him (Mallya) a wilful defaulter but we have to go through the legal process with the UK," he said, replying to a question.
"We can bring him only after getting extradition approval from the UK," Sinha said.
The liquor baron, whose defunct Kingfisher Airline owes more than Rs 9,000 crore to the banks, left the country in March.