Current Affairs Analysis 10 November 2018 [embed width="426" height="240"]https://classroom.youngias.com/tv/pv/Current-affairs-analysis/10-November-2018-News.mp4[/embed] [expand title="Leave a Comment" startwrap="" endwrap=""][comments_template][/expand]
Mam, 155mm*52 calibre meaning is not clear. Everytime a gun specification is these kind of specifications are there. what is the meaning of calibre?? plz help