Categories

• Botany,Physics
• geography
• evs
• Economics,Political Science
• Others,Physics
• Hindi
• Zoology
• Logic
• Physics,History
• Mathematics

Authors

• Dikshit
• B.S
• Taneja
• Sharma, p.d.,vashist p.c
• Khuswant
• Patnaik,K.M,Nagar , Das
• Sukla, a.c.
• Mitra, R.N.,Pati, Nanda , Ghosh
• Pandit C.V.
• Sharma, Sadma