17. Repeal is not a matter of mere form but one of substance, depending upon the intention of the legislature. If the intention indicated expressly or by necessary implication in the subsequent statute was to abrogate or wipe off the former enactment, wholly or in part, then it would be a case of total or pro tanto repeal. If the intention was merely to modify the former enactment by engrafting an exception or granting an exemption, or by super adding conditions,or by restricting, intersecpting or suspending its operation, such modification would not amount to a repeal (see Craies on Statute Law, 7th Edn. pp. 349, 353, 373, 374 and 375; Maxwells Interpretation of Statutes, 11th Edn. pp. 164, 390 based on Mount v. Taylor; Southerlands Statutory Construction 3rd Edn. Vol. I, para 2014 and 2022, pp. 468 and 490). Broadly speaking, the principal object of a repealing and amending Act is to excise dead matter, prune off superfluities and reject clearly inconsistent enactments see Mohinder Singh v. Harbhajan Kaur."