6:43

drilling &blasting part 3 with circular

7:00

All the Best to all my Dear Friends. May God Bless You

8:44

blasting and explosive part 1

15:48

EXPLOSIVE || Type Of Explosive Used In UG/OpenCast Mines || Part-1 || Explosive Blasting ||

33:12

MCQs | Part 2 | Drilling, Blasting & Explosive | Mate, Foreman, Blaster, Sirdar, Overman, 2nd & 1st|

24:19

Explosive & Shotfiring Super 60 Question & Answer || Important Questions for Mining Sirdar, Overman

2:00

overman district size

15:08

All forms & Schedules under The Mines Rule 1955 | All at one place | Form A-U and Schedule 1-6 |