It is the need of the hour to develop such a common language, that can be suitable and understood to all regions and societies from Kashmir to Kanyakumari and west to east and north east. As it is common perception, specially among urban educated class, that to communicate with south and north east region English is a better alternate than Hindi or any native indigenous language.
But one should not forgot that a foreign or alien language can never be an alternate of our own mother language, which is developed with our civilization and Sanskriti, And has witnessed and experienced all the eras of transformation and development of our society. Further the golden period, when Bhartiya research, education and gyana is the best model in the world, that time education in mother tongues was the prime reason for creativity, innovation and originality of thought. Whereas with imposition of a foreign language till primary we have started killing the originality of thought and preventing the cognitive facility of mind to relate creativity and novation with indeginous conditions and circumstances, which we can understand only through mother tongue.
It is a psychological fact that only through mother tongue one can understand and learn most effectively. As, it is the language learnt from mother at first school, that is home, that one see the world and society first time. And the great lessons learnt from the best guru mother are the foundation of one at which one has to develop his personality. So it is the need of the hour to provide education in mother tongue from primary till highest eduaction. Further, a common language should be developed from indian mother languages convergence, for the sake of unity of nation.