Complex sentence: It was constituted as a Municipality with effect from 1.4.1965.upgraded as First grade Municipality from 4.1.1975, Since 2008 Upgraded and functioning as Selection Grade Municipality.
Split into simpler sentences: It was constituted as a Municipality with effect from 1.4.1965. Upgraded as First grade Municipality from 4.1.1975, Since 2008 Upgraded and functioning as Selection Grade Municipality.