Why were ‘reserved constituencies’ devised for the weaker sections by the makers of the Indian constitution?

(i) The constitution makers were worried that in an open electoral competition, certain weaker sections may not stand a good chance to get elected to the Lok Sabha and to the State Legislative Assemblies.
(ii) They may not have the required resources, education and contacts to contest and win elections against others.
(iii) Those who are influential and resourceful may Prevent them from winning the elections.
(iv) If that happens, our: Parliament and Assemblies will be deprived of the voice of a significant section of the population.
This would make our democracy less representative and less democratic.