The Rashtrapati Bhavan has filed a complaint with the Delhi Police against former IPL chief Lalit Modi for allegedly making derogatory tweets against President Pranab Mukherjee's secretary Omita Paul, states a report in PTI. 3/3 the biggest hawala operator is #vivek #nagpal also best known as #omita #pauls #bagman. Lots of data on him. Does anyone care to — Lalit Kumar Modi (@LalitKModi) June 23, 2015The Delhi Police is yet to decide whether to register a case or get legal opinion on blocking Modi's Twitter account, official sources told PTI.The final decision will be taken by Delhi Police Commissioner BS Bassi. Modi had also alleged that the President, formerly the Finance Minister in the UPA government, had ordered an ED probe into his IPL deals in the aftermath of Shashi Tharoor’s ouster from the Union Cabinet in 2010.