Categories

• Chemistry,odiya
• geography
• evs
• Economics,History
• Hindi
• englisg
• Others,Chemistry
• enviromental studies
• Economics,Political Science
• zoolozy

Authors

• Nagpal, c.s.
• U,Banenjee
• Gupta, R.C ,Prakash S , Sigh
• Kukal
• Prem,Arora,Sharma,Ashraf
• Sharma, Ghosh,Chapra
• Sharma.U.
• Biswas , d.k.,Biswas , d.k.
• K.C,Behera,Pradhan P.
• Acharya , R.C