Written and Unwritten ConstitutionConstitution is mainly classifying as written and unwritten as some countries prefer documenting their laws into a single file or book whereas others prefer having the set of rules but still not putting them into pages. That does not mean the rules of the unwritten constitution are invalid or not followed. They are thoroughly and religiously followed and even more so open to changes. Unlike the written one the unwritten constitution lacks codification and compilation. The examples of written constitution include those of India and the USA. The first written constitution is that of the USA which came into existence in 1787 and was enacted on 1789 whereas the largest written one is that of India. On the other hand, the first country to have an unwritten constitution is Britain.Rigid and Flexible ConstitutionA rigid constitution is one the amendment of which is very difficult. It means that making any changes in such type of constitution is a lengthy and time taking procedure. Whereas in a flexible constitution the amendment is very easy unlike the case in the rigid one. In a flexible constitution any change that has to be made only requires a simple majority voting but in the case of a rigid constitution there is a requirement of a special majority. USA is a fine example of a rigid constitution which has had only 27 amendments from the time the constitution was made which is around 230 years. U.K. is a country having a flexible constitution the amendment of which is an easy process. The Indian constitution is one which is neither completely rigid nor completely flexible and has had around 100 amendments in 65 years.Enacted and Evolved ConstitutionA constitution that is framed by a specific body within a specific time is known as an enacted constitution and the Indian constitution is a fine example of that. It was made or formed by a constituent assembly and it took almost 2 years, 11 months and 18 days to be completed. Thus, the Indian constitution can be a fine example of an enacted one as it was created by a specific body and was done during a specific time. An evolved constitution is one which is not created by a specific body and it grows according to or as per the needs and regulations of the hour.The U.K. constitution is an evolved constitution as it can be changed and amended with time as society and the societal norms and regulations changes.Unitary and Federal Constitution[3]In a unitary constitution there is no division of power between the different bodies that govern the nation or that constitutes a government. In such a constitution the power is at the hands of a single entity, in other words the power is concentrated to a single body. Unlike a unitary constitution the federal constitution has the provision of division of power between the governing bodies which means that there is a division of power between the center and the state. The U.K., Afghanistan, Bangladesh, China and Sri Lanka are a few fine examples showcasing a unitary constitution. U.S.A, Nepal, Pakistan and Brazil are a few examples of nations or countries that follow a federal constitution. U.S.A has one of the best federal constitutions among all. In the case of the Indian constitution the power is divided between the center and state so under this condition it can be categorized as a federal constitution but when compared to that of U.S.A it can be concluded that the constitution of U.S.A is more federal than that of India.Recent Developments in Constitutional LawWithin the past few years there have been a lot of changes in the constitutional law of India. As we all know that law is a concept that keeps on evolving with the society and the changing times. Even though constitution is something that cannot be amended there are a few exceptional provisions for the same. The basic framework of the constitution cannot be changed but few parts of the same can be amended when and where required.99th amendment of the constitution: This was implemented in the year 2014 and it talks about the appointment o