The old Rs 500 and Rs 1,000 notes are being reconciled and processed by the RBI for verifying numerical accuracy and authenticity and the progress is being closely monitored, Finance Minister Arun Jaitley said on Tuesday.
The government had demonetised old high denomination notes on November 8, 2016, and had given people time till December 30, 2016, to deposit the same in bank accounts.
The RBI has been entrusted with the job of counting the notes deposited post the cash recall.
In a written reply in the Rajya Sabha, Jaitley said the central bank is still completing the counting of specified bank notes (SBNs).
Steps have been taken to augment RBI's machine processing capacity and efforts are afoot to complete the counting of notes "as soon as possible", Jaitley added.
According to the finance minister, demonetisation has resulted in "several gains" and the I-T department between November 9 and January 10 has made more than 1,100 searches and surveys.
"These actions have led to the seizure of valuables of more than Rs 610 crore which included cash of Rs 513 crore. Seizure of cash in new currency notes was about Rs 110 crore. The undisclosed income detected in these actions was more than Rs 5,400 crore," Jaitley said.
The minister further said digital transactions have increased to 123.46 crore in December 2016, from 71.27 crore in October 2016. However, it has come down to 111.45 crore during May 2017.
"Fake Indian currency note was dealt a heavy crippling blow by demonetisation. No high quality counterfeit new currency notes have been seized by any agency post demonetisation," he said.
Jaitley said a lot of currency notes not part of the formal financial system have been deposited with the banks, leading to the strengthening of deposit base of financial institutions.
Also, increased cash availability has led the banks to reduce the marginal cost of funds based lending rate by up to 0.90 per cent, enabling the reduction in interest rates on loans.