When was Sashastra Seema Bal established?

Hi! I am Saloni Chhetri. I have done masters in Mathematics and currently working as a team member of How to Crack SSB. My hobby is writing which is one of the prime reasons, that I work for this organisation. Apart from this I would like to share one more information about myself, that I am also a Defence aspirant and one day I wish to join the Indian Air Force.