| ★ |  Railway Group D 2026 | Science: Circulatory System | 32 Din 32 Marathon | Marathon 8 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 11 | India | |
| 7 |  Railway Exams 2026 Biology | Human Excretory System | 40 Din 40 Marathon 14 | Radhika Ma’am | RG Railway Exams @rgrailwayexams | — | India | 77 |
| 15 |  Railway Biology Mock Test 5 Marathon 2026 | 40 Din 40 Marathon 24 | By Radhika Ma’am | RG Railway Exams @rgrailwayexams | — | India | 73 |
| 17 |  Railway Exams 2026 Biology | Environment (पर्यावरण) | 40 Din 40 Marathon - 17 | Radhika Ma’am | RG Railway Exams @rgrailwayexams | — | India | 73 |
| 19 |  Railway Exams 2026 Biology | Botany (वनस्पति विज्ञान) | 40 Din 40 Marathon - 18 | Radhika Ma’am | RG Railway Exams @rgrailwayexams | — | India | 72 |
| 1 |  Railway Group D 2026 | Science: Digestive System | 32 Din 32 Marathon | Marathon 7 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 117.8K | India | 93 |
| 3 |  Railway Group D 2026 | Science: Genetics | 32 Din 32 Marathon | Marathon 6 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 74.2K | India | 88 |
| 6 |  RRB Technician Science | हर Shifts में थे ये Questions | RRB Technician Science PYQ | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 72.4K | India | 78 |
| 5 |  Railway Group D 2026 | Science: Tissue ( ऊतक) | 32 Din 32 Marathon | Marathon-1 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 64.8K | India | 86 |
| 2 |  Railway Group D 2026 | Science: Nervous System | 32 Din 32 Marathon | Marathon 5 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 57.2K | India | 93 |
| 4 |  Railway Group D 2026 | Science: Reproduction | 32 Din 32 Marathon | Marathon 4 | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 55.3K | India | 88 |
| 12 |  LDC 2026 | पर्यावरण Part-5 | Science Theory + IMP MCQs | Mission सरकारी बाबू | By Nayana Ma’am | Utkarsh Rajasthan Exams @utkarshrajasthanexams | 29.1K | India | 74 |
| 18 |  RRB NTPC Science | हर Shifts में थे इस Topic से Questions | RRB NTPC Science PYQ | Radhika Ma'am | RG Railway Exams @rgrailwayexams | 26.4K | India | 73 |
| 13 |  LDC 2026 | पर्यावरण Part-6 | Complete Theory + IMP MCQs | Mission सरकारी बाबू | By Nayana Ma’am | Utkarsh Rajasthan Exams @utkarshrajasthanexams | 25.5K | India | 74 |
| 10 |  Railway Exams 2026 Biology | Respiratory System श्वसन तंत्र | 40 Din 40 Marathon 16 | Radhika Ma’am | RG Railway Exams @rgrailwayexams | 22.2K | India | 75 |
| 11 |  LDC 2026 | पर्यावरण Part-7 | Complete Theory + IMP MCQs | Mission सरकारी बाबू | By Nayana Ma’am | Utkarsh Rajasthan Exams @utkarshrajasthanexams | 20.0K | India | 74 |
| 14 |  Railway Biology Mock Test 4 Marathon 2026 | 40 Din 40 Marathon 23 | By Radhika Ma’am | RG Railway Exams @rgrailwayexams | 15.9K | India | 74 |
| 16 |  Railway Science Marathon Class | RRB Technician Biology Questions | 40 Din 40 Marathon | Radhika Mam | RG Railway Exams @rgrailwayexams | 13.0K | India | 73 |
| 9 |  LDC 2026 | पर्यावरण Part-4 | Complete Theory + IMP MCQs | Mission सरकारी बाबू | By Nayana Ma’am | Utkarsh Rajasthan Exams @utkarshrajasthanexams | 12.6K | India | 75 |
| 8 |  LDC 2026 | पर्यावरण Part-3 | Science Theory + IMP MCQs | Mission सरकारी बाबू | By Nayana Ma’am | Utkarsh Rajasthan Exams @utkarshrajasthanexams | 12.5K | India | 76 |
| 20 |  Railway Group D 2026 | Maths: Mixture and Alligation | 32 Din 32 Marathon | Dharmender Dagar Sir | RG Railway Exams @rgrailwayexams | 11 | India | 72 |