Surprise Birthday Vlog #NKD Sir😮

Poor village student to IIT Guwahati journey/Inspirational Story of NKD sir/Student Motivation 2024

🎂NKD Sir Birthday Special Live 🤗

Chemistry Full Book Suggestion & Revision, Class 12 4th Sem Chemistry, BongMistry, NKD Sir

How to Manage Time for Study? Best time manage routine for students in Bengali | BongMistry, NKD Sir

সঠিক প্ল্যানিং=সেরা রেজাল্ট 💯 Madhyamik 2026, NKD Sir, BongMistry

পরীক্ষাগার ও রাসায়নিক শিল্পে অজৈব রসায়ন | Class 10, WBBSE, Oneshot, NKD Sir, Madhyamik 2026

মোলের ধারণা - Mole Concept in Bengali | Class-9 | Bongmistry 9&10 | NKD sir

Chemistry Full Book Revision 3rd Sem Class 12, 2025 /BongMistry, NKD Sir

Mole Concept | মোলের ধারণা | Class-9 | Bongmistry 9&10 | NKD sir

পর্যায় সারণি-Periodic Table Class10 Oneshot full chapter revision, Madhyamik 2026, NKD Sir

রসায়নের প্রাথমিক ধারণা (L1)/ Class11: chapter-01 in Bengali BongMistry, NKD Sir

Organic Chemistry Suggestion , Class 12 4th Sem | Nitrogen Compound | BongMistry, NKD Sir