With the controversy surrounding diamond czar Nirav Modi and Punjab National Bank taking the banking sector in India by storm, Congress President Rahul Gandhi today launched a fresh salvo at Prime Minister Narendra Modi. Taking to Twitter, Rahul referred to the PNB scam which has jeweller businessman Nirav Modi at the centre of the fraud and sought to draw parallels between his absence in India and the exit of other accused in high-profile cases, including Lalit Modi who is under scanner for his role in the IPL scam. Linking the Indian Premier League scam accused and the PNB fraud, Rahul said that Nirav Modi had managed to escape from India due to a 'catalyst'. Rahul presented his tweet as a chemical reaction, something he dubbed as the 'scamster's escape formula'. Illustrating this reaction, Rahul alleged that both Lalit Modi and Nirav Modi could escape from India due to the 'catalyst' Na(Mo). Rahul Gandhi's tweet read: The scamster's escape formula: Na(Mo) La(Mo) + Ni(Mo) ---> Bha(Go) The scamster's escape formula: Na(Mo) La(Mo) + Ni(Mo) ---> Bha(Go)#ModiRobsIndia \u2014 Office of RG (@OfficeOfRG) February 16, 2018 The government had come under attack from the Congress president in this case on Thursday as well. The Congress President alleged that Nirav Modi had used his clout to get his way around to 'steal Rs 12,000 crore' and 'slip out of the country like Mallya.' Rahul Gandhi\u2019s tweet started with \u201cguide to looting India by Nirav Modi\u201d. He then referred to Nirav Modi's presence at the WEF at Davos in a group photograph on January 23 alongside PM Modi, suggesting that it was the influence he drew from being seen around the PM that allowed him to \u201cslip out of the country.\u201d His Tweet read: Guide to Looting India by Nirav MODI 1. Hug PM Modi 2. Be seen with him in DAVOS Use that clout to: A. Steal 12,000Cr B. Slip out of the country like Mallya, while the Govt looks the other way. Guide to Looting India by Nirav MODI 1. Hug PM Modi 2. Be seen with him in DAVOS Use that clout to: A. Steal 12,000Cr B. Slip out of the country like Mallya, while the Govt looks the other way. #From1MODI2another \u2014 Office of RG (@OfficeOfRG) February 15, 2018 The Punjab National Bank fraud case involving Nirav Modi has triggered a war of words between the Congress and the BJP. On Thursday, Congress spokesperson flagged a copy of a complaint by a Bangalore resident Hari Prasad, claiming that Prasad was seeking early an action against jeweller businessman and his partner Mehul Choksi. Congress leader Randeep Surjewala alleged that the letter was acknowledged on July 26, 2016, by the Prime Minister's Office. Surjewala said that the Prime Minister was made aware of the PNB scam through the complaint. The alleged Rs 11,400 crore scam at state-owned Punjab National Bank purportedly involved Nirav Modi acquiring fraudulent letters of undertaking from a PNB branch in Mumbai to secure overseas credit from other Indian lenders. The BJP hit back at the Congress' allegations, saying whatever was coming out now was the UPA's doing and that the government would act against all accused. Union Law Minister Ravi Shankar Prasad said, "It is a very well-known fact that Nirav Modi is close to the Gandhi family. A former Congress leader has shared that Rahul Gandhi was seen at Nirav Modi's event in the Imperial Hotel in 2013."