As far as the area of Delhi as a state is concerned, it is not even half of Goa, the smallest independent state. Even though Goa is also small, it has its own distinct identity. It has a different language, different culture, ethnicity, food habits and a totally different take on its professions. Whereas, Delhi is too small geographically, even though it might be having a very large population. Moreover, Delhi has the status of National Capital Region (NCR), under which towns from the neighbouring states of UP, Haryana and Rajasthan also come under it. If Delhi is made into an independent state, what will happen to the concept of NCR? How can regions of other states be part of an independent state?
All through these years, the centre has been pouring exorbitant amounts of funds for the development of Delhi as the national capital. Once the complete control of the national capital goes under the jurisdiction of the state government, the capital city will be at the mercy of the whims of the state government. The state government may not give priority to Delhi as the national capital. It may instead pursue its own priorities and political ambitions and may downplay the role of Delhi as the capital city, just to score some brownie points against the centre.
In the early stages of the discussion, one of the members supporting the idea of independent state for Delhi had mentioned that, Delhi should be a state because it has a large population. If population could be the criteria, then Sikkim should not be a state at all. Sikkim's population is almost 1/18th of Delhi's population. Delhi's population is not because it is a state, instead it is because of it's being a city, that too a capital city. Because of its attraction of being the capital of one of the most populous country, over the years millions have come to the city from different parts of the country and settled here. Delhi's population is not homogenous at all. It is a lot more cosmopolitan. It doesn't have a population that is limited to one identity, one ethnicity, one language or one culture. It is urbane too. So the city is fit for union territory status only. Yes there's a native population too, who are getting outnumbered by the ever increasing migrant population. As Saji has well suggested, there can be thoughts on providing reservation of seats for the real natives of the region in educational institutions in Delhi. Let's see what happens on that count.
Patience and perseverance pays