System notes

CDSL Reconciliation Automation

Precize

A Python and AWS Lambda workflow that processes uploaded PDFs and automates daily CDSL reconciliation.

Problem

Daily CDSL share-transfer reconciliation was a manual process that typically took between 30 and 60 minutes.

What I built

A Python workflow triggered through AWS Lambda.
PDF-upload processing for the daily reconciliation input.
Automated reconciliation that completed in roughly five minutes after upload.

Outcome

The workflow reduced the repeated manual reconciliation process from 30–60 minutes to approximately five minutes.