GST classification clarified: composite supply, pure agent, job work rates, DMFT governmental exemption, and CPWD horticulture relief. Clarifies that reduced-rate passenger transport and renting with operator (SAC 9964/9966) qualify as the same line of business but leasing without operator (SAC 9973) does not; electricity bundled with renting or maintenance is a composite supply taxed at the principal supply rate while electricity supplied as a pure agent and billed at actuals is excluded from value; job work converting barley into malt is job work in relation to food products and attracts 5% GST; DMFTs set up by States are Governmental Authorities and eligible for exemptions; horticulture services to CPWD with goods value 25% are exempt under Sr. No. 3/3A.