Rinse them with water and put them inside the inner pot of instant pot.
Add 5 cups of water. Close the lid of the instant pot and turn the steam release handle to sealing position. Tap “manual mode” and set time for 12 minutes.
When the time is up, open the lid using “natural release”.
You can drain the excess water and store it in an airtight container. (Refrigerate for a week or freeze for a month)
Notes
If you are not soaking the chickpeas then cook for 45 min in manual mode and open the lid using natural release.