दूरसंचार विभाग
1. whether telecom companies store/preserve the CDR (call detail record) data of their prepaid or postpaid customers .
2. Rules for telecom companies in order to store(preserve) the CDR data of their customers.
3.how many months/years old CDR data a telecom company has to store(preserve).
4. in which mode the telecom companies store the CDR data of its customers.
5. whether 5 year old or more old CDR data remains available with telecom companies.
6. whom and how to complain against the telecom provider for its slow internet data speed as promised.
please provide me the above information under RTI act with a copy to my email id.