The Reserve Bank of India also banned with immediate effect issuance of letters of comfort which, like LoUs, are used by importers to fund their overseas purchases.
The ED on Monday also examined the state-owned bank's executive director K V Brahmaji Rao to understand how the alleged fraud was detected and other banking procedures.
The moves by the RBI, announced late on Wednesday, should increase supplies of gold and brighten the earnings outlook for jewellery makers after the government took tough measures to curb imports last year, analysts said.
'There are so many issues that the CVC is examining both with reference to the PNB and RBI,' K V Chowdary said.
'We don't trade with any business where we have specific concerns,' a De Beers spokesperson said.
The notice, the sources said, was issued on Tuesday to Anita Singhvi and that she was asked to explain how much she had paid in cash and through cheque to purchase the valuables and jewellery a few years back. It is understood that the I-T feels that about Rs 1.5 crore was paid by cheque for the purchase of the jewellery, while about Rs 4.8 crore was paid in cash by Anita Singhvi.
'I was shocked by the kidnapping episode. I could have lost my life.'
Despite various challenges, the past year was a good one, says Bruce Cleaver, chief executive officer of the De Beers Group, the global corporation that has been the leading one in all aspects of the diamond trade for over a century.
Gold jewellery exports may decline by about 50 per cent in this financial year from last year after government restrictions reduced the availability of raw material, Gitanjali Gems Chairman and Managing Director Mehul Choksi said.
There can't be a parallel inquiry and parallel monitoring by the courts, Attorney General K K Venugopal told the court.
There are around 6,500 diamond manufacturers of which Palanpuri Jains operate a mere 6 per cent, or around 400 companies. But they stand out for being highly interlinked through blood ties.
In a 7-page letter Choksi said, he was being threatened by the individuals with whom he has business relationship and due to the seizure of his assets, his employees, customers and creditors have started to show animosity towards him.
Building a global brand was Choksi's idea, which Modi borrowed from him.
The Enforcement Directorate, which continued its searches against Modi, Choksi and their companies for the fourth day on Sunday , is also moving to attach at least two dozen immovable properties under the Prevention of Money Laundering Act.
'Irrespective of the price movement of gold, customers can lock in their purchase at Rs 28,000 per 10 grams of pure gold.'
But the 30-share Sensex rose by 141.52 points, or 0.41 per cent, to close at 34,297.47. The broader NSE Nifty gained 44.60- points, or 0.42 per cent, to end at 10,545.50 after touching a high of 10,618.10.
Indian jewellers such as Gitanjali Gems, Malabar Gold and Kalyan Jewellers have opened stores abroad to limit the slump in sales.
Import in the first nine months of the current calendar year fell 20 per cent to 525 tonnes from 658 tonnes in the year-ago period.
The jewellery industry has welcomed the government's decision to ban old Rs 500 and Rs 1,000 notes, saying gold demand will rise as people will have more faith in the precious metal than the currency notes. But the unorganised builders and secondary (resale) property market would be adversely impacted.
The BSE Sensex zoomed 318 points to end at 33,351.57, while the broader Nifty spurted 88 points to 10,242.65.
The problem is actually acute in the diamond jewellery industry where there is no uniform criteria of inventory valuation unlike gold, whose prices are uniform and widely quoted.
The government will unveil the Consumer Price Index data and the Wholesale Price Index data for August on Monday.
No one knows where billionaire Nirav Modi emerged from. What is known is that when he came (back) to India, he cut his teeth in the diamond business under the tutelage of his jeweller uncle. Then he began to build a glittering international brand. Soon even Hollywood stars like Kate Winslet and Dakota Johnson were walking the red carpet showing off Nirav Modi jewels.
A sightholder is a company on the Diamond Trading Company's list of authorised bulk purchasers of rough diamonds.
Investors lost around Rs 1.57 lakh crore in market valuation on Friday.
India's long-held position as the world's top diamond polisher is being challenged by soaring output from China.
Frozen mutual funds and shares worth Rs 86.72 crore belong to Choksi and his group, and the rest are owned by the Modi group.
The Enforcement Directorate on Wednesday continued raids for the seventh day as it visited 17 locations across the country, including four shell companies in Mumbai, even as the Income Tax department attached assets worth Rs 145 crore in the alleged Rs 11,400-crore Punjab National Bank fraud.
Three-four big gem and jewellery firms are showing financial weaknesses and might find it tough to withstand shocks
The venue for Saturday's meeting was shifted at the last minute from the headquarters of the India Banks' Association in Cuffe Parade to avoid media glare.
'Today, according to the law, you can't even claim legal expenses when fighting a case as a non-executive director unless you are acquitted. Given how high legal expenses are, that alone is enough to scare anyone away.'
Gokulnath Shetty, then deputy manager (now retired), Manoj Kharat, a single window operator of PNB, and Hemant Bhat were taken into custody by the agency
The scheme, touted as a panacea to burgeoning CAD, was a huge flop that fostered a spike in smuggling and allowed several Gitanjali-like players to make a killing
The latest fraud is a failure of management supervision and accountability, as no bad debt was generated and no cash was involved
"Guide to looting India by Nirav Modi - - 1) Hug PM Modi 2) Be seen with him in Davos. Use that clout to: A) Steal 12,000 crore B) Slip out of the country like Mallya, while the government looks the other way," Congress chief Rahul Gandhi tweeted.
The Sensex soared 402 points higher to end at 25,720 and the Nifty surged 130 points to close at 7,819.
Dealers expect prices to fall further, owing to an impending rate hike in the US
Modi has been relentless in building his brand regardless of banks having a problem of fraudulent and unauthorised transactions with his companies.
Ajit Mishra, vice president, Research, Religare Broking, answers your queries.
It was unclear how bankers were deciding which jewellers to support