In The Unicode Standard, Mro script implementation is discussed in  Chapter 13 South and Central Asia-II: Other Modern Scripts.

The Mro script was encoded in The Unicode Standard version 7.0. The script is now encoded in the following block:

BlocksCharacter RangeAdded in Unicode VersionUnicode chart
Mro 16A40..16A6F 7.0  U16A40.pdf

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

2009-10-27 Proposal for encoding the Mro script in the SMP of the UCS — Martin Hosken, Michael Everson ( WG2 N3589,  L2/09-097)

2011-3-17 Discussion of Mro Dandas — Martin Hosken ( WG2 N4010,  L2/11-122)