I asked my Punjabi friends who is Bhimsen Sachar? they said he is Rajendra Sachar otherwise I do not know, was their answer

Chacha Manmohan Singh have quoted the following lines while delivering Bhimsen Sachar Memorial Lecture, December 2008. 

“The unity of India was of paramount concern as expressed by the great architect of our Constitution - Dr. Ambedkar, when he said: 

"Though the country and the people may be divided into different states for convenience of administration, the country is one integral whole, its people a single people living under a single imperium derived from a single source... The Drafting Committee thought it was better to make [this] clear at the outset rather than leave it to speculation...." 

In his submissions to the States Re-organisation Commission Dr Ambedkar spoke at length about the tortuous journey the “United States” of America had to make to become “One Nation.” He then went on to suggest: 

“India is not even mentally and morally fit to call itself the ‘United States’ of India. We have a long way to go to become the United States of India. The Union of India is far, far away, from the United States of India.” 

Dr Ambedkar then went on to lament: 

“God seems to have laid a heavy curse on India and Indians, saying ‘Ye Indians shall always remain divided and ye shall always be slaves’.”  

 I am reminded of the famous words of Swami Vikekananda: 

"Sectarianism, bigotry and its horrible descendant, fanaticism have long possessed this beautiful earth. They have filled the earth with violence, drenched it often with human blood, destroyed civilizations and sent whole nations to despair. Had it not been for these horrible demons, human society would be far more advanced than it is now".