Categories

• geography
• zoolozy
• Environmental Studies
• Chemistry
• Biology
• Others,Botany
• Economics,History
• Botany,Zoology
• enviromental studies
• Other

Authors

• Ratha , C.S
• Thope
• Sunyananayana, N.V
• Pradhan,Bhagwat
• Pankaj
• Aiyengan
• sundaram k.p.m.
• Coles Ed Boand
• salgaonkar
• Sashi Kumar , Guru sekhar