Variant sets
Bengali — Root Zone Label Generation Rules, 4th Edition
Code points grouped into sets of mutual variants. Every member of a set produces the same set of variant labels, so a registration of one has implications for all the others. Sets of a single member are omitted, as are the identity mappings RFC 7940 requires each member to declare.
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ন্থন্হ
Source Direction Target Disposition Ref Comment ন্থ U+09A8 + U+09CD + U+09A5 ↔ ন্হ U+09A8 + U+09CD + U+09B9 blocked Bengali variant ↔ declared both ways ⇆ both ways, different disposition each way → one direction only
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স্থস্হ
Source Direction Target Disposition Ref Comment স্থ U+09B8 + U+09CD + U+09A5 ↔ স্হ U+09B8 + U+09CD + U+09B9 blocked Bengali variant ↔ declared both ways ⇆ both ways, different disposition each way → one direction only