Call Detail Record Typing for Legal Evidence – What to Expect

What a Call Detail Record Contains

A call detail record (CDR) is a structured log generated by a mobile network operator every time a communication event occurs on its network. The record includes far more than the calling and called numbers. Standard fields cover call type (voice, SMS, data), timestamp, duration, the Cell ID of the serving tower, the Location Area Code (LAC), and technical identifiers such as IMEI and IMSI that link the event to a specific handset and SIM. For data sessions, the CDR often breaks out internet usage and data usage volumes. Even pre-paid balance deductions may appear in some operator formats. Together, these fields map a subscriber’s activity, network path, and approximate geographic location at the time of the event.

Common Formats of Indian Telecom CDRs

The Indian telecom landscape includes multiple operators whose CDR layouts differ in column ordering, field naming, and the granularity of technical data. Airtel CDRs typically present voice and SMS events in separate sections with clear party-number fields. Jio records, reflecting an all-IP network, tend to include VoLTE call markers and detailed internet usage columns. Vodafone Idea (Vi) formats often separate roaming indicators, while BSNL CDRs may add switch-level identifiers. Not all operators include IMEI or IMSI in every printed CDR, some provide Cell ID and LAC only when location tracking is enabled. These variations mean that a typed CDR produced from a scan needs to faithfully preserve the original column structure, regardless of operator.

Why You Might Need a Typed Call Detail Record

Scanned or photographed CDR printouts are essentially pictures. They cannot be searched, copied into case briefs, or redacted without manual effort. A typed CDR transforms that image into a clean DOCX file where every call type, duration, Cell ID, and LAC sits in structured rows and columns. Attorneys and litigants use typed CDRs for internal case review, sharing with co-counsel, preparing timelines, and annotating patterns before drafting arguments. While a typed DOCX is not a substitute for the certified printout required for court admission, it makes the document far more usable at every stage of case preparation. From our experience processing similar telecom-data typing jobs, the request for a typed CDR almost always originates from a need to work with the data, not just to store it.

AI Typing vs Certified Court-Ready Transcription: When Each Fits

Lekhak’s AI typing service converts a CDR scan into a formatted DOCX in minutes. The output is accurate to the source image, preserves table structure, and is ready for review, search, and annotation. It fits squarely in the pre‑submission workflow: attorney analysis, client consultation, or internal evidence assessment. A court-ready transcript is a different requirement altogether. For electronic records to be admissible in an Indian courtroom, the document must be accompanied by a certificate under Section 65B of the Indian Evidence Act, often produced on notarised printouts with a signed statement attesting to the record’s integrity. AI typing alone cannot satisfy that evidentiary threshold, and Lekhak does not claim it can. The two services solve different problems, and each has its place.

What Lekhak’s Call Detail Record Typing Service Produces

When you upload a CDR image or PDF, Lekhak’s AI extracts the table rows and columns and delivers a searchable DOCX. The file mirrors the original layout: every Call Type, A‑party number, B‑party number, timestamp, duration, Cell ID, LAC, IMEI, and IMSI that appears in the scan is placed in the corresponding cell. No field is edited, interpreted, or omitted. The DOCX does not include any certification page, legal opinion, or assertion of evidentiary value. The table below illustrates the kind of structured output you receive:

Call Type	A Party	B Party	Start Time	Duration	Cell ID	LAC	IMEI	IMSI
Voice	[CALLER_NO]	[CALLED_NO]	[TIMESTAMP]	[DURATION]	[CELL_ID]	[LAC]	[IMEI]	[IMSI]

Person‑level identifiers, phone numbers, IMEI, IMSI, are exactly as they appear in the uploaded scan. Lekhak’s processing does not redact them. The DOCX is yours to use for analysis, sharing with counsel, or archiving.

Certification Under Section 65B of the Indian Evidence Act

Electronic records, including typed or printed CDRs, are governed by Section 65B of the Indian Evidence Act. The provision requires a certificate that identifies the electronic record, describes the manner of its production, and satisfies the conditions laid down in the section. Without such a certificate, typically issued by a person in lawful control of the device that generated the record, the document is not admissible as evidence. The Supreme Court’s ruling in Anvar P.V. vs P.K. Basheer made clear that a mere printout or a typed copy, without a contemporaneous Section 65B certificate, cannot be relied upon in court proceedings.

Need a certified transcript? Lekhak’s managed‑services route

If your matter requires a typed CDR that is admissible in an Indian court, complete with a Section 65B certificate, notarisation, or apostille, Lekhak can discuss these needs through its managed‑services channel. Because certified attestation, notary, and embassy‑ready formatting are not part of the self‑serve DOCX typing flow, they are handled offline on a case‑by‑case basis. To explore options, reach Lekhak’s support team via the website. This route is intended for court filings, cross‑border evidence requests, and any scenario where a self‑certified printout will not satisfy procedural rules.

How to Obtain Your Own Call Detail Record from a Telecom Provider

Telecom operators in India are regulated entities and will release CDRs only under specific conditions. For a subscriber requesting their own records, most operators allow access through their self‑care portal or app for a limited look‑back period, often the last six to twelve months. For older records, or for CDRs of a third party, a formal request citing a court order or a notice under criminal procedure is generally required. The process typically involves contacting the operator’s Nodal Officer or Appellate Authority with a written application, proof of identity, and a clear description of the mobile number and date range. Subpoena‑based requests routed through the police or a court are the usual route when the records are needed for litigation. Once obtained, the document is often a scanned PDF or printed image, precisely the starting point for a typing service that can turn it into a workable digital file.

Frequently Asked Questions

What is a call detail record (CDR)?

A CDR is a log created by a telecom network that captures the details of a communication event, including the calling and called numbers, call type, start time, duration, and technical data such as Cell ID, LAC, IMEI, and IMSI. It serves as a digital footprint of network activity.

Can I get my CDR from my telecom provider without a lawyer?

Yes, if you are the subscriber and the records are for your own number. Many operators let you download a limited period of CDRs through their customer portal or authorised retail outlets. For third‑party CDRs or older logs, a court order or police requisition is almost always necessary.

What information does a CDR typically include?

Beyond the party numbers, a typical CDR lists call type (voice, SMS, data), timestamp, duration, Cell ID, LAC, and device identifiers like IMEI and IMSI. Data sections may show internet usage in bytes, and pre‑paid entries might note balance deductions at the time of the event.

Why would I need a typed CDR rather than a scanned PDF?

A scanned PDF is an image that cannot be searched or edited. Typing the CDR into a DOCX makes every field selectable, lets you copy rows into a timeline, apply highlights, and share granular data with counsel. It is a practical step before any deeper analysis or legal drafting begins.

Is an AI‑typed CDR valid as evidence in an Indian court?

No. A typed DOCX produced by AI, no matter how accurate, does not carry the certificate required under Section 65B of the Indian Evidence Act. It is useful for preparation, internal review, and attorney consultation, but not for admission as evidence in a trial or hearing.

What is a Section 65B certificate, and when is it required?

Section 65B of the Indian Evidence Act mandates that electronic records be accompanied by a certificate that identifies the record, describes the manner of its creation, and verifies its integrity. A printout or typed copy without this certificate is generally not admissible in court.

Does Lekhak provide certified CDR transcripts for court submission?

Lekhak’s self‑serve typing service does not produce certified transcripts. If you need a CDR with a Section 65B certificate, notarisation, or apostille, you can contact Lekhak’s support team through the website to discuss managed‑services options, which are handled offline case by case.

How does Lekhak’s typing service handle sensitive information like phone numbers and IMEI?

The typed DOCX reproduces all identifiers exactly as they appear in the uploaded scan. Lekhak does not alter, mask, or redact phone numbers, IMEI, or IMSI values. The file is delivered to you for responsible handling in accordance with your own data‑protection obligations.

Can I use Lekhak’s typed CDR for a private investigation or internal review?

Yes. A typed CDR is well suited for internal case reviews, sharing with a private investigator, or preparing a brief for legal counsel. As long as the document is not intended for direct court admission without a proper certificate, it serves as a practical working copy.

What telecom operators’ CDRs can Lekhak process?

The service works with CDR scans from all major Indian operators, including Airtel, Jio, Vodafone Idea, and BSNL. Because the AI focuses on table structure and field extraction, variations in column naming or layout across operators are handled regardless of the source format.