Government on Friday said it would goto the bottom of attempts to illegally obtain call details of BJP leader Arun Jaitley and would not point fingers at anyone at this juncture as investigation was still on.
Hours after home minister Sushil Kumar Shinde rejected the allegation of phone-tapping of the Leader of the Opposition in Rajya Sabha, Minister of State for home RPN Singh said it was a matter of call details being obtained "scrupulously".
"At this point, we do not want to insinuate anybody or point fingers at anybody who may be behind it," he told reporters in New Delhi.
Singh said this was a matter of great concern as it involves the Leader of the Opposition in Rajya Sabha.
"Preliminary investigation is being carried out by the Delhi Police. Four people have been arrested and investigation is on. Government is serious that we get to the bottom of it," he said.
Earlier, Shinde said in Rajya Sabha that the government did not authorise anybody to intercept the telephone of Jaitley.
"This was not a case of telephone-tapping. The Indian government is not tapping any member's phone," he said.