Malerkotla recently became the 23rd district in Punjab.

How are new districts carved:-

The power to create new districts or alter or abolish existing districts rests with the State governments.
This can either be done through an executive order or by passing a law in the State Assembly.
Many States prefer the executive route by simply issuing a notification in the official gazette.

How does it help:-

States argue that smaller districts lead to better administration and governance. For example, in 2016, the Assam government issued a notification to upgrade the Majuli sub-division to Majuli district for “administrative expediency”.

Does the Central government have a role to play here:-

The Centre has no role to play in the alteration of districts or creation of new ones. States are free to decide.

The Home Ministry comes into the picture when a State wants to change the name of a district or a railway station.

The State government’s request is sent to other departments and agencies such as the Ministry of Earth Sciences, Intelligence Bureau, Department of Posts, Geographical Survey of India Sciences and the Railway Ministry seeking clearance. A no-objection certificate may be issued after examining their replies.

What has been the trend:-

According to the 2011 Census, there were 593 districts in the country.

The Census results showed that between 2001-2011, as many as 46 districts were created by States.
Though the 2021 Census is yet to happen, Know India, a website run by the Government of India, says currently there are 718 districts in the country.
The surge in number is also due to bifurcation of Andhra Pradesh into A.P. and Telangana in 2014. Telangana at present has 33 districts and A.P. has 13 districts.