He was speaking to reporters after the government won a vote in the Rajya Sabha on allowing foreign supermarkets such as Wal-Mart Stores Inc to set up shop in India for the first time.
It won a similar vote in the Lok Sabha on Wednesday.
Prime Minister Manmohan Singh's administration will now turn its attention to pushing more reforms, including raising foreign investment caps in the insurance and pension sectors.
"This is the victory for more reforms. In the following week we will bring more financial legislation on economic reforms," Mr Nath said.
"Our reforms are on track," he added.
Copyright @ Thomson Reuters 2012