The comparison gets made because the two countries are close, share a Tamil-speaking population and look similar in photographs. Tested against published figures, most of the working assumptions a traveller carries from one to the other do not transfer.

Religion, as the census records it

The 2024 census gives Sri Lanka's religious composition as Buddhist 69.8 percent, Hindu 12.6 percent, Islam 10.7 percent, Roman Catholic 5.6 percent, other Christian 1.3 percent, on a total population of 21,781,800.

The 2012 comparison published in the same report is Buddhist 70.1, Hindu 12.6, Islam 9.7, Roman Catholic 6.2 and other Christian 1.4 percent. So this is a stable composition rather than a shifting one.

A Buddhist-majority country with a Hindu minority of one in eight is a different setting from a Hindu-majority one, and it shows up in what is closed on which days, what a temple visit requires, and which calendar governs the year. There is a companion piece on the island's language zones.

Sri Lanka's Constitution makes Sinhala the official language, adds Tamil as also official, and names English the link language. Sinhala and Tamil are the languages of administration and of the courts throughout the country, and all laws must be published in both with an English translation.

The census measures read-and-write literacy at 85.2 percent for Sinhala, 57.3 percent for English and 45.3 percent for Tamil among those aged 10 and over. Hindi has no status and no measured presence.

Ethnicity and the Tamil connection

The census records Sinhalese at 74.12 percent, Sri Lanka Tamil at 12.31 percent, Sri Lanka Moor or Muslim at 10.47 percent and Indian Tamil or Malaiyaga Thamilar at 2.76 percent. That last category, 600,360 people in 2024 against 839,504 in 2012, is concentrated in Central Province at 15.0 percent and specifically in Nuwara Eliya district.

So a Tamil-speaking population exists and is substantial, and it is recorded in two distinct census categories with different geographic distributions. Reporting it that way, as the census does, is more accurate than treating Tamil Sri Lanka as an extension of Tamil Nadu.

Two visa systems, not one

Sri Lanka's Department of Immigration and Emigration operates the Electronic Travel Authorization, which applicants obtain before arriving. India's official portal states that foreign nationals require a national passport with a valid visa from an Indian Mission or Post, or an eVisa in limited categories from its Bureau of Immigration, and names two distinct routes.

These are separate national systems on separate government domains with no shared authorisation. No fees or conditions are given here, because both change. The adjacent question of Poya days and travel dates is treated separately.

Scale, where only one side could be verified

Sri Lanka's own figures: total area 67,240 square kilometres with a land area of 62,302 on one publication's labelling, maximum length 435 kilometres, maximum width 225 kilometres, mid-2025 population about 21,756 thousand at a density of 349 per square kilometre.

The railway runs 1,436 kilometres of route by its 2024 administration report. The national highway network runs 12,309.519 kilometres of A and B class roads plus 312.586 kilometres of expressway as of June 2026, with about 4,322 bridges. Local government roads add a further 147,265 kilometres by the statistics department's 2024 count.

No Indian figures appear in this section. The Indian census and ministry tables could not be retrieved from official sources during verification, and this guide does not substitute numbers from elsewhere.

Alcohol, and one structural difference

Sri Lanka's Excise Department states that it exercises jurisdiction under the Excise Ordinance, Chapter 52, and licenses liquor manufacturers, importers, wholesalers, retailers, hotels and clubs as distinct categories, with hotels and clubs holding a separate licence class from retailers.

Beyond that, the monthly Poya restriction commonly described in guidebooks could not be verified from any official source, so this guide states no rule about it. What is verifiable is that every full moon is a public holiday, which is itself a structural feature India has no equivalent to.

Where the comparison does hold

India is Sri Lanka's largest single source market. Of 2,362,521 foreign arrivals in 2025, up 15.1 percent on 2024 and described by the tourism authority as the highest in the country's history, approximately 531,511 came from India. The regional split was Asia and Pacific 1,039,759 at 44.0 percent, the Americas 119,830 at 5.1 percent and Africa 17,639 at 0.7 percent.

So the two countries are genuinely connected in visitor flow, which is part of why the comparison gets made. It is a statement about who travels rather than about what the destination is like. For the neighbouring topic, see the two monsoon seasons.

What this guide does not cover

No Indian figures are given for religion, population, area, road length, rail length or tourist arrivals, because none could be retrieved from an official Indian source during verification. Whether Sinhala is Indo-Aryan and Tamil Dravidian is not stated: neither Sri Lankan statistics publication classifies the languages genealogically and no official source could be reached. No visa fees, durations or conditions appear for either country. The monthly Poya alcohol restriction and any hotel exemption are unverified and are not described. Census figures are reproduced as published, with the census's own definitional notes, and nothing here characterises any group or takes a position on any political question.