Parliament of Singapore was allocated 15 out of 127 seats. Under its new State Constitution, Singapore kept its own executive government and legislative assembly. However, with effect from 9 August 1965, Singapore left Malaysia and became a fully independent republic. On separation from Malaysia, the Singapore Government retained its legislative powers, and the Parliament of Malaysia gave up all power to make laws for Singapore. Similarly, the Republic of Singapore Independence Act 1965, passed on 22 December 1965 and made retrospective to 9 August, declared that the legislative powers of the Yang di-Pertuan Agong (Supreme Head of the Federation) and Parliament of Malaysia
Imperial Federation eventually became self-governing. Among other concerns, it would be very difficult for British interests to be maintained if every colony was essentially already sovereign. Creating an Imperial Federation thus became a popular alternative proposal to colonial imperialism. The plan was never firm, but the general proposal was to create a single federal state among all colonies of the British Empire. The federation would have a common parliament and would be governed as a superstate. Thus, Imperial unity could be maintained while still allowing for democratic government. The colonies would increase their influence while Britain would be able to share the