The assignment was earlier given to global audit firm EY. But it has now been reassigned owing to 'certain conflict of interest', the Bengaluru-based company said.
The probe team's chief at that time, R K Raghavan, in his new book, said it required "tremendous persuasion" to make Modi agree to a short recess. "This was possibly Modi's concession to the need for a respite for Malhotra rather than for himself. Such was the energy of the man."
The probe gave a clean chit to the tax department that was being alleged to have harassed Siddhartha.