Indian documents often combine a regional script with English names, addresses, dates and reference numbers. A useful OCR workflow preserves the original script and gives reviewers a way to check consequential fields.
Start with the source image
Use a clear, upright scan with readable small print. Cropped matras, faint vowel signs and blurred numerals can change meaning before OCR begins.
Identify the scripts present before review and keep each in its original form. A language label may help a reviewer organize the work, but it does not guarantee that every word is correct.
- Keep the original page available for comparison
- Avoid aggressive compression and clipped margins
- Check page order in multi-page PDFs
Preserve script and context
Keep Hindi in Devanagari, Tamil in Tamil script, Bengali in Bengali script and English in Latin script. Transliteration or translation can silently change names and identifiers.
Review similar-looking digits, currency amounts, dates, addresses and proper nouns against the source. Mixed English and regional-language lines deserve particular attention.
- Compare names and ID numbers character by character
- Check decimal points, separators and currency symbols
- Mark unreadable spans for manual review rather than guessing
Measure accuracy on your own documents
Test representative pages from each script, scanner and document type. Compare OCR text against a human-verified reference using character error rate, then separately measure exact match on the fields that drive your workflow.
Report results per language and document type. One aggregate score can hide poor performance on a minority script or a difficult form.
Human review remains important for legal, financial and identity information, especially when the scan is faint or handwritten.
