Amitabh Bachchan
We can suggest for him a mid-length messy style which makes him look trendy and younger.
Mahendra Singh Dhoni
We can suggest something new like, a fade with a hard part which he has never tried.
Anand Mahindra
A shorter version of his current haircut, shaving his moustache off, making him look younger
Mukesh Ambani
We can suggest a Bond-like style which makes him look really trendy, true to his stature as one of India’s biggest tycoons.
Narendra Modi
We can go with a side parting, slightly shorter sides & back, also can go for a clean shave which makes him look younger.
Satya Nadella
As we can’t play much with his hair we can suggest him to go short without shaving his head and a beard not more than 6mm
Sunil Bharti Mittal
We suggest he leave it long on the top, short on the side and back, with a french beard.