Krishna Singh( railway,ssc@defence)

Hii everyone 
I am Krishna Singh
Here I upload study material
Which is important for airfoce x and y group 
NAVY SSR and AA and mr
Indian coast guard DB and GD
Upsc (NDA and CDS)
Afcat
DRDO
Ssc
Railway
And all type of comparative exam

And all important vacancy and study realted things
This channel is dedicated for defense asparents
Join my telegram channel for pdf and study notes
https://t.me/krishnakumarchannel

https://t.me/railwaytech1








You can contact me through my email address
krishna822102@gmail.com


Thanks for watching my channel and videos