Puchhkad Riddle (Pocchey Laal Puchhkad)- 4

Everyone in this world remembers September 11 as a black day. A day when terror was unleashed on innocent lives. But do you know on this very day two proud Indians gave message of peace and brotherhood to this world. Do tell us the name and the message that sons of India gave.

Riddle me this riddle me that?