Services by way of construction of road fall under heading 9954. This heading inter alia covers general construction services of highways, streets, roads railways, airfield runways, bridges and tunnels. Consideration for construction of road service may be paid partially upfront and partially in deferred annual payments (and may be called annuities). Said entry 23A does not apply to services falling under heading 9954 (it specifically covers heading 9967 only). Therefore, plain reading of entry 23A makes it clear that it does not cover construction of road services (falling under heading 9954), even if deferred payment is made by way of instalments (annuities).