Coalition politics is something where no party gets a definite majority required to form the government in the elections. It mainly happens in a multi party system like which India follows. Here there are more than 2 parties competing for the same spot in the same constituencies which makes it difficult for any single candidates to get the required cutoff.
India is a democratic country which has done well to make sure that we do not fall backwards on the wheel of time. With the advancement of science we have progressed after our independence and now the world looks upon us as a country to look at.
India had the sense to follow the democratic set up of leadership after our independence while many countries went other paths. North Korea in fact have a dictator ship true even now, Iraq had a dictator in Saddham Hussain until Americans over threw him. But our very neighbor china has gone behind the communist setup.
Dictatorship in this case would mean that the decision making power would lie with a single individual and hence a faster decision making is possible. The ever growing delay for anything is overcome in a dictatorship set up.
If the dictator is sure of the outcome of development project it would be said that the project would immediately go into operation. This would prevent the unnecessary wastage of time dealing with the various legal setups of the government policies.