Activities or Transactions - Goods and Services Tax - GST

What is the meaning of ACTIVITY and TRANSACTION as used in CGST Act Sec 7 Sec 7(1)(aa) talks about Activities or Transactions Sec 7(1)(c) Talks about Activities specified in Schedule I . Sec 7(I)(A) again talks about Activities or Transactions and has a cross references to Schedule II . Interestingly Schedule II initially had a heading Activities to be treated as supply of goods or supply of services. But later Goods and Services Tax amendment Act 2018 retrospectively amended this w.e.f 1.07.2017 and included the word OR TRANSACTIONS. Sec 7(2)(a) again talks about activities or transactions specified in Schedule III . Sec 7 (3) gives power to central Government to specify certain ACTIVITIES only either as a supply of goods or as a supply of services. Understanding this is a must because a word AND and another word OR used in law made a lot of difference as we learned in Safary Retreats.