In The Unicode Standard, Syloti Nagri script implementation is discussed in  Chapter 15 South and Central Asia-IV.

The Syloti Nagri script was encoded in The Unicode Standard version 4.1. The script is encoded in the following block:

BlocksCharacter RangeAdded in Unicode VersionUnicode Chart
Syloti Nagri A800..A82F 4.1  UA800

A number of proposals for its inclusion were submitted to the Unicode Technical Committee and WG2:

2002-11-01 Proposal for Encoding Syloti Nagri Script in the BMP — Peter Constable, James Lloyd-Williams, Sue Lloyd-Williams, Advocate Shamsul Islam Chowdhury, Professor Asaddar Ali, Mohammed Sadique, Matiar Rahman Chowdhury ( L2/02-387)

2002-11-01 Documentation in support of proposal for encoding Syloti Nagri — James Lloyd-Williams, Sue Lloyd-Williams, Peter Constable ( WG2 N2592,  L2/02-388)

2003-05-05 Alternate Encoding Models for Syloti Nagri — Peter Constable ( L2/03-146)

2003-06-12 Revised Proposal for Encoding Syloti Nagri Script in the BMP — Peter Constable, James Lloyd-Williams, Sue Lloyd-Williams, Advocate Shamsul Islam Chowdhury, Professor Asaddar Ali, Mohammed Sadique, Matiar Rahman Chowdhury ( WG2 N2591,  L2/03-151)

2003-08-13 Introduction to the Syloti Nagri Script — Daniel Kai ( L2/03-257)

2003-08-13 Lepcha, Limbu, Syloti, Saurashtra, Tai Le and Bugis Proposals — Daniel Kai ( L2/03-253)

2005-05-07 Encoding Model for Syloti Nagri Conjoining Behaviour — Peter Constable ( L2/05-130)

2005-10-19 General category and bidi property for some Indic characters — Asmus Freytag ( L2/05-304)

2005-10-24 Comments on 5.0 properties, and property consistency, for some Indic characters (introduced before 5.0) — Kent Karlsson ( L2/05-316)

2008-03-02 Criteria for the encoding of script-specific dandas — Unicode and US National Body ( WG2 N3457,  L2/08-118)