What is Rat hole Mining | Rat hole Mining | Tunnel Rescue | Mining Methods | UPSC Current Affairs |

[@n.kvidyarthieducation1286]

अद्भुत गुरु , गजब 💖

[@rominkumar202]

Bhut अच्छी जानकारी ❤❤

[@rohitsharma7384]

Option 'B' is correct
Thank you so much sir

[@yogeshkhajuria5827]

You speak hindi very well... Nice.... You are inspiration of many students

[@nksingh.7238]

Thanku sir ..intresting

[@Rahul_Yadav7398]

Thank you for Knowledge

[@ashutoshojha777]

Great sir❤

[@babitayadav6765]

Thank you sir 😊

[@jatinkayastha5893]

Option B is right

[@rominkumar202]

B keval 2

[@Thereallifeadventure]

😊❤

[@QuasierAcademy]

B

[@Prayagrajkumbh2025]

2

[@BeenuPandey-z5u]

B

[@Study-s8l]

B

[@VivekKumar-o1i1j]

B