“I am a Mechanical Engineering student at IIT Delhi and the lone girl in my batch, so basically, I am the extremity of poor sex ratios in IITs,” wrote IITian Sanju Ahuja in a blog in 2013.

Mechanical Engineering is a course which girls rarely opt for.  In mech engineering colleges across the country, the guys often form a department pact - the one or two girls in the department are sisters to every guy, and every guy is a brother to the girls.

And this one picture which encapsulates all those emotions, one image which speaks for the several lakh mech boys and girls of the nation.

This was a picture taken by the Mechanical department students of Sree Buddha Engineering College in Pattoor, Kerala during Onam celebrations. It was shared by students on Facebook and has gone viral since. In fact, the girl has also taken to FB to share her happiness. In her post she writes,"135 brothers for one sister".