Ismail Ali is carrying an inch-long plaster, tucked inside his lungi, as he is about to cast his vote in the Char area of Chaygaon.
The plaster is for him and the families of his four brothers.
For everyone of this extended family of 44, that plaster is an insurance for the next six months at least.
"Immediately after I vote, I will plaster the index finger to protect the indelible ink because that is my identity. That is my recognition of being an Indian citizen. I will keep the finger away from water and I will protect it by any means," he said.