This list is based on my views and research I have done.
1) Sardar Vallabh Bhai Patel
2) Atal Bihari Vajpeyee
3) Lal Bahadur shastri
4) Narendra Modi
5) Indira Gandhi
6) Nitish Kumar
7) Jawahar Lal Nehru
8) Rajiv Gandhi
9) Morarji Desai
10) Ram Manohar Lohia
What you think???
1) Sardar Vallabh Bhai Patel
2) Atal Bihari Vajpeyee
3) Lal Bahadur shastri
4) Narendra Modi
5) Indira Gandhi
6) Nitish Kumar
7) Jawahar Lal Nehru
8) Rajiv Gandhi
9) Morarji Desai
10) Ram Manohar Lohia
What you think???