Investigators contacted the National Database and Registration Authority and obtained details of the suspects, including their cell phone numbers.
Police have so far taken 40 people into custody from different areas of Rawalpindi.
A government fact-finding committee today quizzed three senior police officials - Zaheem Shiekh, Bilal Saddiq Kamyana and Dar Ali Khattak - who were removed for negligence of duty and recorded their statements.
