How does Unicode differ from ISCII?
Except for a few minor differences, they correspond directly. Unicode is designed to be a multilingual encoding that requires no escape sequences or switching between scripts. For any given Indic script, the consonant and vowel letter codes of Unicode are based on ISCII. ISCII allowed control over character formation by combining letters with the characters NUKTA, INV, & HALANT. Unicode provides similar control with the ZWJ & ZWNJ characters.
