Rana has sought an unconditional and unqualified public apology within seven days from Singh, failing which he threatened to initiate legal proceedings against him.
"These allegations are not only false, misleading, incorrect and malicious in their entirety but have been made purposely to harm the reputation of my client in the estimation of public at large," Rana's advocate Dinesh Singh Chouhan said in a legal notice.
"I call upon you (Singh) to withdraw all allegations and statements made against my client in the news report and tender an unconditional and unqualified public apology within seven days failing which my client would be constrained to commence appropriate legal proceedings against you in accordance with law...," Chouhan said.
The legal proceedings may include filing of an appropriate complaint under Jammu and Kashmir Criminal Procedure Code, 1988 and a defamation suit for recovering damages to the extent of Rs 10 crore, he added.
The news report titled 'NC, Panthers indulge into war of words, use choicest crude lexicons against each other' has MLA Harshdev Singh stating false and defamatory allegations against Rana, the lawyer said.