CapsAI
Indian Languages6 min read

How to Caption Indian Phone Numbers, Dates, Rupee Amounts and Measurements

India uses number formatting conventions that differ from the Western world. Lakhs and crores instead of millions, the dd/mm/yyyy date format, ten-digit mobile numbers grouped differently, and rupee symbols placed before the number. When AI generates subtitles from speech, it often applies American formatting - writing '1,000,000' instead of '10,00,000' or '$' instead of the rupee sign. Getting these details right matters for credibility with Indian viewers.

By CapsAI · Updated 19 August 2026

Key takeaways

  • Indian number grouping uses lakh (1,00,000) and crore (1,00,00,000) - not millions and billions.
  • Write rupee amounts as Rs or the rupee symbol before the number, with Indian comma grouping.
  • Indian dates follow dd/mm/yyyy or written formats like '15 August 2024' - never mm/dd/yyyy.
  • Phone numbers should appear as spoken: either as digit groups or the full 10-digit mobile format.

Indian number system in subtitles

When a speaker says 'paanch lakh rupaye', the subtitle should read '5,00,000' or '5 lakh' - never '500,000'. The Indian numbering system groups digits differently after the thousands place: ones, thousands, lakhs, crores. This comma placement (1,00,00,000 for one crore) looks wrong to Western readers but is instantly readable to Indian viewers. Always use the system your audience expects.

For mixed audiences, consider writing the word form alongside the numeral on first mention: '5 lakh (500,000)'. For purely Indian audiences, just use the Indian format. If your content is in English but targeted at India, the Indian grouping system is still the correct choice - Indian English uses lakhs and crores, not millions and billions.

  • 1 lakh = 1,00,000 (not 100,000 with Western grouping).
  • 1 crore = 1,00,00,000 (not 10,000,000).
  • Write 'lakh' and 'crore' in subtitles when the speaker uses these words.
  • For amounts under 1000, formatting is identical to Western convention.

Rupee amounts and currency formatting

The Indian rupee symbol is placed before the number with no space in formal writing, though colloquial usage varies. In subtitles, use whichever format matches the spoken content: if the speaker says 'five hundred rupees', write 'Rs 500' or '500 rupees'. If they say a price casually, the numeral alone with context works too. Avoid the dollar sign or generic currency symbols.

For large amounts spoken as 'do lakh' or 'pachaas hazaar', decide between the numeral format (Rs 2,00,000) and the word format (Rs 2 lakh) based on readability at subtitle speed. Word format is often faster to read in captions because viewers process 'Rs 2 lakh' more quickly than counting zeros in 'Rs 2,00,000' during a brief subtitle display.

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Dates, times, and measurements

India follows the dd/mm/yyyy date format. When a speaker says 'fifteen August', write '15 August' or '15/08' - never '8/15' which is the American month-first format. For times, India uses both 12-hour (with AM/PM) and 24-hour formats; match the speaker's usage. IST (Indian Standard Time) should be spelled out on first mention if the audience is international.

Indian measurements include both metric and traditional units. Heights are often stated in feet and inches, distances in kilometers, weights in kilograms, and land in square feet or acres. When a speaker uses traditional units like 'tola' (gold weight) or 'bigha' (land area), keep the original term and add a metric equivalent in parentheses only if the international audience would be lost without it.

Phone numbers and addresses in captions

Indian mobile numbers are 10 digits, typically spoken in groups of 3-3-4 or 5-5. Caption them as spoken: if the speaker says 'nine eight seven six, five four three, two one zero zero', write '9876-543-2100' or '98765 43210' - matching the grouping the speaker uses helps viewers note the number. Include the +91 country code only when the speaker mentions it.

For addresses, Indian format places the building name or number first, then street, area, city, state, and PIN code. In subtitles, only include as much of the address as the speaker actually says. Do not expand abbreviations (like 'MG Road') unless the speaker does. PIN codes are 6 digits and should not be formatted with any separators.

Frequently asked questions

Should I write 'lakh' or '100,000' in English subtitles for Indian videos?

For Indian audiences, write 'lakh' - it is standard Indian English vocabulary. For international audiences, write both: '5 lakh (500,000)' on first mention, then just the Indian form.

How do I format the rupee symbol in SRT subtitle files?

Use the Unicode rupee sign (U+20B9) directly in your UTF-8 encoded SRT file. If font support is uncertain, 'Rs' is a universally safe alternative that all Indian viewers recognize.

Why does AI transcription write my amounts in dollars or Western number format?

Most ASR systems default to American English formatting. Use a tool trained for Indian English, or manually correct the formatting after generation. CapsAI's Indian English mode applies Indian number grouping automatically.

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