except a lot of the tribes were further reduced to paltry sizes after the tsunami. If I remember correctly from my last visit in 1996/97, the census numbers for some of the tribes were already around ~100. Since Port Blair is on the middle island of the Andaman land mass, it has affected all the other tribes on that island. Especially the Jarwa.

North andaman (Jarwa) tribes at the time were hostile, which I believe since the construction of the Andaman grand trunk road have become more subdued.

Compared to Jarwa, the sentilese have it better, they dont share their island.