Woww.. It seems the process is NOT only different based on the country where you apply. And it depends on place where you apply too.
In Toronto Checklist, it was specified only for those who doesn't have Indian passport. I would let anyone who did this before reply on this since I applied in Toronto with Indian passport.
The same question was posted during last year. You can try asking question whether he was able to figure out or not
https://www.canadavisa.com/canada-immigration-discussion-board/threads/purpose-for-seeking-pcc.714789/
Toronto checklist:
https://blsindia-canada.com/CanadaVisaCCT/toronto-PCC-Checklist-Rev-10-10-NOV-18-2020.pdf
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Former Indian/Canadian / Foreign Passport holders
Foreigners who have resided in India in the past may apply for a Police Clearance Certificate for obtaining Visa for certain countries, please provide the below documentation;(Originals and copy)
-Purpose for seeking PCC must be ascertained.
-Current Valid Passport copies: Copy of photo ID page,copies of all immigration stamp pages to India, observationsand endorsements, if any.If visitedIndia on a previous expired or cancelled passport, please bring the copies of the old expired passports with photo Id page, Indian Visa and stamps to Indiaas well.
-CANADIAN/ FOREIGN CITIZENSHIP CERTIFICATE: Canadians please provide a copy of the long Oath Certificate copy
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