"We are now assessing the facts (as to) how we can bring him back into the country and start judicial proceedings against him," he told reporters here.
The government, he said, will leave no stone unturned to bring to justice anyone indulging in financial irregularities.
"During Lok Sabha elections, Prime Minister Narendra Nodi had talked about bringing black money back... And of strong steps against economic offenders," he said.
Mallya, 61, who has been pursued by India over unpaid loans tied to his now-defunct Kingfisher Airlines, was arrested in London, but granted bail today.
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Since Mallya left the country, the government has been looking at steps to bring him back, he said.
"We will not take any such step which could make it appear that we are going against law, and we will not leave any offender who falls under Indian law," Gangwar pointed out.
"We are taking stringent steps and will not protect any offender," he emphasised.
Asked about bringing other offenders to India, he said it is in process.
"The Modi government will leave no stone unturned if anyone is indulging in misappropriation of funds. We are entering into treaties with other countries so that offenders cannot flee. We are on a path to bring the matter within the judicial purview and will assess it further," he said.