JSON file output contains bogus entries - CAMS CAS

[ashokkjag]

I'm seeing random folio/amc where I have never invested showing up in the JSON output.

The CSV output is correct. I'm not sure how to share a sample CAS PDF here.

❯ casparser -o /tmp/out.csv /tmp/CAS.pdf
Enter PDF password:
Generating detailed CSV file...
File saved : /tmp/out.csv

❯ casparser -o /tmp/out.json /tmp/CAS.pdf
Enter PDF password:
Generating JSON file...
File saved : /tmp/out.json

❯ cut -d "," -f 1 /tmp/out.csv | sort | uniq
AXIS Mutual Fund
Aditya Birla Sun Life Mutual Fund
Capitalmind Mutual Fund
Franklin Templeton Mutual Fund
HDFC Mutual Fund
HSBC Mutual Fund
ICICI Prudential Mutual Fund
Nippon India Mutual Fund
PGIM INDIA MUTUAL FUND
PPFAS Mutual Fund
UTI Mutual Fund
amc

❯ wc -l /tmp/out.csv
282 /tmp/out.csv

❯ jq '.folios[] | .amc' /tmp/out.json | uniq
"Aditya Birla Sun Life Mutual Fund"
"AXIS Mutual Fund"
"Bandhan Mutual Fund"
"Capitalmind Mutual Fund"
"Franklin Templeton Mutual Fund"
"HDFC Mutual Fund"
"HSBC Mutual Fund"
"ICICI Prudential Mutual Fund"
"Nippon India Mutual Fund"
"PGIM INDIA MUTUAL FUND"
"PPFAS Mutual Fund"
"SBI Mutual Fund"
"UTI Mutual Fund"

❯ jq '.folios[] | .schemes[] | .transactions[] | .date' /tmp/out.json | wc -l
281

notice the additional Bandhan and SBI Mutual funds with random folio numbers but no transactions.

[mital]

Analyzing this I see following root cause and fix could work:

Root cause:
AMC_RE only matches section header lines ending with MF or Mutual Fund. When a CAS uses Parag Parikh Financial Advisory Services (the company name) instead of PPFAS Mutual Fund
as the section header, the parser misses it — so current_amc stays set to the previous AMC (Nippon India in your case), and the PPFAS folios inherit the wrong one.

Fix:
Extended AMC_RE to also explicitly match Parag Parikh Financial Advisory Services (with optional Pvt/Ltd suffix), following the same approach already used for Franklin Templeton Investments.