A Data Processor is a vendor or tool that handles personal data on behalf of a Data Fiduciary.
Simple example
If a school uses an email platform to send class updates to parents, the email platform is usually a Data Processor. The school still decides why the email is sent.
Why it matters
Processors are part of your DPDP risk. If they receive customer, student, patient, employee, or lead data, you need to know what data they get and what they are allowed to do with it.
What to check
Which vendors receive personal data?
What exact data goes to each vendor?
Does the vendor use the data only for your instructions?
Can the vendor delete or export data when needed?
Do contracts explain processor responsibilities clearly?
Buying a tool first and asking privacy questions later.
Make a vendor list. For each vendor, write: data sent, purpose, access, deletion method, and contract owner.
If this is still fuzzy, do this
Run one real data journey through your business. Do not start with legal language. Start with the person, the form, the tool, the vendor, the message, and the deletion point.