Plot of the story :-
Mrs. Baruah's assignment ---> Students speak on famous personalities--->
Kabeer's initial hesitation ----> Kabeer speaks on the heroes of the terrorist attacks on Mumbai ---> His tribute to unsung heroes ---> Everyone's emotions aroused ---> Students give a standing ovation to Kabeer ---Mrs.Baruah feels proud of her students.
This entire story revolves around the lives of those bravehearts, who sacrificed their lives and contributed in their own way, when Mumbai was faced with terrorist attacks.The story 'indian heroes' presents an example of a story within a story. The characters in the frame (outer) story include the teacher and the students. It tells us what happened in the classroom.
There is another story of the terrorist attack on several locations in mumbai. This story is known as the core(core) story. The frame story has Kabeer and Mrs.baruah as the main characters.
the unsung heroes mentioned by Kabeer includes Major Sandeep Unikrishnan(NSG commando), Vishnu Dattaram, Karambir singh Kang ( Hotle manager of taj hotle), Hemant Karkare, Ashok Kamte, Vijay salaskar(All three are policemen), Mohammed Taufeeq Sheik, sandra Samuel and caretakers of the cementeries.
hope it helps :))