Composition scheme threshold increased, with lower state-specific limit and exclusions for manufacturers of ice cream, pan masala, tobacco. Expands eligibility for the composition scheme by raising the aggregate turnover ceiling for opting into composition levy payable in lieu of tax under normal provisions, prescribes tax computation pursuant to applicable GST rules, imposes a lower state-specific ceiling for certain smaller states, excludes manufacturers of ice cream, pan masala and tobacco from eligibility, ties tariff interpretation to the Customs Tariff First Schedule, and takes effect at the start of the notified fiscal period.