Namdhinggo SIL is a Unicode font for the Limbu writing system of Nepal. It provides glyphs for all Limbu characters and some Latin.

The Limbu, or Kirat Sirijonga, script is used by around 400,000 people in Nepal and India. This Unicode-encoded font has been designed to support literacy and materials development in the Limbu language.

According to traditional histories the Limbu script was developed by King Sirijonga in the 9th Century. It then fell out of use before being reintroduced in the 18th century by Teongsi Sirijonga (1704-1741) whom many felt to be the reincarnation of the first Sirijonga. The modern Sirijonga was apparently martyred in 1741 for the sake of this script by lamas in Sikkim. The script was named ‘Sirijonga’ in his honour by the Limbu scholar Iman Singh Chemjong.

Supported character ranges

Unicode blockNamdhinggo SIL support
Limbu (complete)U+1900..U+194F

The Devanagari “bit” is set in this font to prevent unwarranted font switching when U+0965 DEVANAGARI DOUBLE DANDA is used. However, U+0965 is the only character from the Devanagari block in this font.

Inclusion of basic Latin characters is provided as a convenience for use in menus or for displaying markup in text files, for example. These fonts are not intended for extensive Latin script use. A utility such as SIL ViewGlyph can be used to examine the exact repertoire of this font.

Data Conversion

If you have existing data using the now-obsolete Namdhinggo SIL L font and wish to convert your data to Unicode, you may use the Limbu-legacy to Limbu Unicode TECkit mapping file to convert documents (text or Word) to Unicode. Since Namdhinggo SIL L used an encoding that is common among other fonts for the script it is possible that this mapping file will work for texts using those custom-encoded Limbu fonts.

The DevaUni-LimUni TECkit mapping file (also available in downloads) gives the ability to convert between Unicode-encoded Devanagari script and Unicode-encoded Limbu script.

Both maps can be used with TECkit and/or SILConverters.

(The Namdhinggo SIL L 8-bit legacy font is available for download below in case you no longer have it installed but still need it.)


Two separate Keyman keyboards are available.

  • The Limbu Phonetic (SIL) keyboard uses a Romanized layout, where the Limbu characters are located on the corresponding Latin keys (Limbu U+1901 LIMBU LETTER KA is on the ‘k’ key, etc.).
  • The Limbu Typewriter (SIL) is the “Typewriter” layout, which roughly matches the layout of a manual Devanagari typewriter.


This font is designed to work with the OpenType advanced font technology. To take advantage of the advanced typographic capability of this font, you must be using applications that provide an adequate level of support for OpenType. See the Release Notes for version 2.000 below for more details.



This font is licensed under the SIL Open Font License (OFL)


Namdhinggo SIL 2.000for all platforms FONT | 144.2 KB | 28 May 2021

Release Notes for v2.000

  • Enabled new characters from Unicode 7(U+191D and U+191E) and related conjuncts
  • Improved OpenType Code

The OpenType improvements allow the font to work in applications that use HarfBuzz (such as Firefox, Chrome, Android, and LibreOffice) and InDesign (2020 and 2021). The font will not work in DirectWrite applications (such as Microsoft Word for Windows) until a fix (already coded) is released.

Previous version

Namdhinggo SIL 1.004for all platforms PREV FONT | 70.0 KB | 21 Feb 2012

Legacy font (obsolete)

This font is not encoded according to the Unicode Standard. It is a custom-encoded 8-bit legacy font.

Namdhinggo SIL L (obsolete legacy font) 1.001for all platforms LEGACY FONT | 67.1 KB | 14 Jun 2007


As these fonts and utilities are distributed at no cost, we are unable to provide a commercial level of personal technical support. We will, however, try to resolve problems that are reported to us.

We do hope that you will report problems so they can be addressed in future releases. Even if you are not having any specific problems, but have an idea on how this system could be improved, we want to hear your ideas and suggestions.

Please note that these fonts are intended for use by experienced computer users. Installing and using these fonts is not a trivial matter. The most effective technical support is usually provided by an experienced computer user who can personally sit down with you at your computer to troubleshoot the problem.

Information for Contributors

We welcome contributions to this font project, such as new glyphs, enhanced smart font code, or bug fixes. The best way to begin the process is to file an issue in the Github project (Namdhinggo) or respond to an existing issue and express your interest. Then we can begin to correspond with you regarding what all might be required and discuss how to best submit your contributions.

To enable us to accept contributions in a way that honors your contribution and respects your copyright while preserving long-term flexibility for open source licensing, you would also need to agree to the SIL International Contributor License Agreement for Font Software (v1.0) prior to sending us your contribution. To read more about this requirement and find out how to submit the required form, please visit the CLA information page.


General troubleshooting information, including frequently asked questions, can be found in the documentation. Additional information is also available on the general Font FAQ page. If that fails to answer your question, send an email via this contact form.

Before requesting technical support, please:

  • Carefully read all the documentation provided with the font and on this site.
  • Try the Support and Troubleshooting path on scripts.sil.org.

Language Software Community

Support from other software users may be available through the SIL Language Software Community. This community will be growing to become the major source of software support.

If that fails to answer your question, or you have a bug report, feature suggestion, or need help using the software, please contact us using the form below.

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