In an article, Mr Jaitley, Leader of the Opposition in Rajya Sabha, said three attempts were made to get call detail records of mobile phones used by him, his drivers and his son. (Read article: My call detail records and a citizen's right to privacy: Arun Jaitley)
Interestingly, he has said that the call details being procured were of November-December 2012, and January 2013. This is the period when a lot of activities took place in the BJP as the then President Nitin Gadkari, who was seeking a second term, faced a series of allegations.
Mr Gadkari's business house Purti Group was raided by the Income Tax officials and there were charges of dubious funding of his companies.
MKr Gadkari finally had to bow out and Rajnath Singh became BJP president in January.
The winter session of Parliament was held in December.
However, Mr Jaitley has not thrown any light on what he feels could be the reason for those seeking his call details to have chosen this time period.
"This could be an out-sourced operation to a government agency or a private rogue operation," he said.
Mr Jaitley hit out at the Delhi Police for believing that there is no pattern in the three attempts to find out whom he was in touch with during the "critical period".
"I find it difficult to accept this explanation of the Delhi Police that it is unable to find out the master-mind behind this operation and it is merely co-incidental that so many activities were taking place at the same time to get at my call details... Either the investigation is extremely incompetent to discover the identity of the master-mind or the Delhi Police finds it embarrassing to name the master-mind," he said.