At the point of independence, Indian citizenship law was a matter of residency, not religion or ethnicity. That could be about to change.
As India opens up a new bridge in its north-eastern region, local tribal communities feel left out of the development picture.
While Narendra Modi's Hindu nationalist government can take heart, the political landscape is fragmenting along caste, religious and ideological lines.
Assam state suffers from severe flooding every few years but authorities still aren't prepared.