Ranjana is another calligraphic Devanagari script used mainly to write Nepali language but is used in monasteries from Mongolia to India to Japan. One unique feature of this script is it can be used to create monograms easily. This is accomplished by stretching the length of the alphabet. For example, the below one is for the Mantra Om Mani Padmane Ham
The attachment is a very good reference for writing Ranjana.
Vowels and vowel diacritics