Indians account for the largest tourist arrivals in Sri Lanka followed by China.Sri Lankan tourism bureau said tourist arrivals from India grew by 26.6 percent last month to 34,481 compared to a year ago.The overall tourists from India have gone up by 6.1 percent to 267,601 so far this year.However, tourist arrivals to Sri Lanka were down by 2.3 percent in September, the second dip in three months.The biggest fall were seen in the European and Chinese markets. German arrivals fell by 15.1 percent while Chinese arrivals were down by 14.3 percent.