Imperfect bicameralism is a form of bicameral legislature, in which Lower House and Upper House have different powers and functions. Because one of the two Chambers (usually the Lower House) is more relevant than the other one in the legislative process, it has more decisional power. The opposite situation, in which both Chambers have the same powers, is known as equal bicameralism.
Examples of imperfect bicameralism are the Parliament of France, the Spanish Cortes Generales and the Parliament of the United Kingdom.
India is also a imperfect bicameral state. As both it's houses i.e. loksabha(lower house), rajyasabha (upper house) have different powers.