Starting lease possible with OCI (no aadhar) ?

Hello everyone, trying to find out what kind of challenges we might run into if we shift to Kochi permanently under these conditions: \- Has OCI and US passport (no longer Indian citizen) \-NO aadhar yet (planning to apply after staying for 6 months, no plans to return to overseas) Plan is to get Indian phone number as soon as we land, then start lease and utilities -- is this possible? Would landlords and cell phone providers be okay with us having just OCI and foreign passport (no aadhar)? Thank you!