The southernmost polling booth of India, situated at Shompen Hut in the Great Nicobar Island of the Andaman and Nicobar Lok Sabha constituency, did not see a single vote cast by the last surviving stone-age tribe living in dense jungle there.The 31 inhabited islands of the constituency went to the polls on April 11.The booth is around 20 km from the southernmost point of the Indian subcontinent, Indira Point. In 2014, two members of the aboriginal Shompen tribe had cast their votes — the first time people of the indigenous tribe of Great Nicobar Island are recorded as having voted.“We have two booths with 66 and 22 voters each in Shompen Hut. Our polling party was present in the difficult terrain to facilitate voting. However, no vote was cast this year,” chief electoral officer (CEO) of Andaman and Nicobar, KR Meena, told TOI. He said the tribals come out from their dwellings deep inside the jungle on a weekly or fortnightly basis to take ration from Shompen Hut. “Locals had used knots tied on a cloth to signal tribals the number of days left to elections as a countdown to polls. They used sign language as well as local dialect to communicate that the area goes to the polls on April 11. But none turned up. Perhaps, the communication by locals was not done effectively, or they just did not want to come,” Meena added.When asked why polling parties did not go deep in the jungle to call upon voters, Meena spoke about the Supreme Court order that no person other than the member of the aboriginal tribes is allowed to enter the tribal reserve and the 5-km buffer area around it and the restrictions in place by the tribal affairs ministry. “It is only when the tribals approach us that we can interact with them and not vice-versa. We were ready to facilitate, since they are on the electoral rolls, but we cannot force them."While two members from the Shompen community voted in 2014, the Jarawas and the Sentinelese, indigenous inhabitants of the Andaman group of islands, have never cast a single vote in the history of Indian elections. Living in dense jungles, their names find no mention in the electoral rolls.The two tribes are part of the total six scheduled tribes of the Andaman and Nicobar islands. The others include Great Andamanese, Onges, Nicobarese and Shompens. While there is no contact of the Sentinelese and limited contact of the Jarawas with the outside world, apart from Shompens, the other three tribes did cast their vote on April 11. The tribal population constitutes only 8.27% of the total population in Andaman and Nicobar islands.The overall voting percentage in the constituency, which has 3.17 lakh voters, has dropped from 70% in the 2014 polls to 66% this year. “We are still in the process of final counting but there has been a drop. We are assessing the reasons and on preliminary basis, it seems that since board examinations ended on April 4, many parents moved to the mainland after that," Meena said.