Rejecting !he contentions. the Court, A HELD: (I) The provisiom of the 1963-Act (taxation of passengm and . goods) indicate ·that the tax under that Act ia a tax on pusenaers and ownen of goods and that the operators only collected the tax. When pu!eDFfl and owners of goods pay the tax, the Government requires an agency to collect it . nd the operators are such agent.s. The power to enact such a measure ii derived from entry 56 of the State List II of the Seventh Schedule lo tho .Constitution, [329B·C. D-FJ B . M /1 Saillik Motors, Jod/1p11r & Otlitrs v. Th• Stal• of Ra/a1t/1an, (1962) 1 s.c:a. 517, followed. (2) The tax recovered retroapectively 11 well 11 prospectively ii the l&Dle tax, a tax on passen'°ra and JOO(ls. The tax ii lmpoeed by the 1963 Act lllld Ito · cblU'acter as well as incidence is determined by the 1963-Act No tax ii impooed or collected under Act 34 of 1971, nor was there any alteration of the chailcter of the tax which had already been imposed. The machinery for ill colloctloa which was implicit in the 1963-Act was made explicit by Act 18 of 1971. Tbe C State Government fixed the fare in July I, 1963 after taking into account the 0 tlement of tax on passengers and goods imposed by the 1963-Act The operators in coliecting fares from passengers in fact collected the ta:ii: due from them under ·the 1963-Act along with the fare. Section 43(1A) of the Motor Vehicles Act only clarified tile factual basis. It i! competent to the State Leaislature to amend the Motor Vehicles Act by enacting that directiom regarding fares can be inclusive of tax. The two Acts of 1971 were only for the purpoae of dispellin& the doubtl ·expressed in Thon1n1au Case. [33C-0] D Rai Ramkrlshno & Ollim v. The State of Bihar, (1964] 1 S.C.R. 897, o!IPlained , and followed. S. Srtkantiah &: Ors. v. Tht Rtglonal TraflSport Authority, Anantapt1r &: Ors., :[1971] Supp. S.C.R. 816, followed. (3) The correspondence nnd representations by the operators and notc:;a of hearing prepared by the Secretariat in connection with the revialon of fareo, show, that the incidence of the increase in the motor vehicles tax and the lllCI'..,. E t11 Jax liability on account of tax on pa11t1111r1 and goods were all taken iato con· 11deration in fixing the fare with effect from July I, 1973. Since the tax was an element included in tho fare ·structure, the retrospective validation cannot bo nid to be unjust. especially because the operators had collected the entire amount. 1332B.C; 334C-DJ ORIGINAL JURISD!OTION: Writ Petition No. 326 of 1972 & 203 of 1973. F Under Article 32 of the Constitution of India for the enforcement of fundamental rights. Cii'il Appeal No. 1875 of 1972. Appeal by Special Leave from the Judgment and Order dated the 15th March, 1972 of the Kerala High C:>urt at Ernakulam in 0. P No. 23 of 1971. G Cil'il Appeal No. 1765 of 1972. From the Judgment and Order dated the 16th March, 1972 of the Kerala High Court Ernakulam in O.P. No. 3034 of 1971. Cil'il Appeal No. 27 of 1973. From the Judgment and Order dated the 13th March, 1972 of the H Kcrala High Court in O.P. No. 2320 of 1971. cCivil Appeal No. 361 of 1973.