DOTEL/R/T/22/00225

DOTEL/R/T/22/00225
Request :

Kindly provide me certified copy of :
1. Circular mentioning guidelines for preservation of CDR (Call data records) of a mobile number by telecom companies,which was in force before December 2021.
2. Circular mentioning authority/official in State Police who can access CDR of an individual.
3. Standard Operating Procedure (SOP)to be followed by telecom company when CDR is provided to Police?