Agartala (Tripura), Oct 12 (ANI): A Nigerian citizen was arrested from Agartala railway station by Tripura police yesterday. He was arrested for not possessing any Indian visa or immigration stamp. According to police, the Nigerian citizen came to Dhaka for business purpose but had no reason to come to India. The matter has been given more importance after incidents of Nigerian being involved in drug trade. The police also checked his baggage.