A spokesperson for the finance ministry declined to comment.
The IDBI Bank stake sale is a test case for Prime Minister Narendra Modi, who has committed to divest from most large businesses India owns, and use the funds to bolster public finances. After years of trying, the government has only been able to privatize national carrier Air India Ltd. and introduce outside backers to LIC, while its plans to sell refiner Bharat Petroleum Corp Ltd. hit a wall as bidders struggled to find partners.
The government has been slow in raising funds from disinvestment this year. The annual budget earmarked 650 billion rupees from asset sales for the current fiscal year, but it has raised just over a third of the target, primarily from the $2.7 billion initial public offering of LIC in May.