Step 1: Understand the question.
We need the state that proposed the Nativity Card Bill in 2026 for a permanent photo ID for natives and their descendants.
Step 2: Identify it.
Assam proposed the Nativity Card Bill.
Step 3: Why Assam.
Assam has a long history of demographic and documentation issues, like the NRC. This bill gives a secure ID to those born in the state or descended from verified ancestors.
Step 4: Rule out others.
Manipur uses the Inner Line Permit, while Tamil Nadu and Kerala use standard resident certificates. The Nativity Card Bill is from Assam.
Step 5: Conclude.
The state is Assam.
Answer: Assam