MATHEMATICS [ 2 Volumes ] - Rs.290 Direction, Editing & Special Scripting : Sameer M. Haridas [MBA]Human Technologist CMD Zen Educational Technologies Chief Scripting : Lata Shenoy Msc Mathematics,IIT Madras Honorary Contribution : Dr.Venkateshwarallu [M.sc (phy). Ph.D] Senior Scientist ISRO SCIENCE [ 4 Volumes ] - Rs.690 Direction, Editing & Special Scripting : Sameer M. Haridas [MBA]Human Technologist CMD Zen Educational Technologies Chief Scripting : Dr. Bhagyalaxmi (Msc) Honorary Contribution : Dr.Venkateshwarallu [M.sc (phy). Ph.D] Senior Scientist ISRO Content By : Praveen Sali [M.sc. (Phy)] Experience Teacher R.T. Naik [M.sc (Phy)] Rt. Head Master Srinivas Kulkarani [B.Tech.] Experience Teacher   Direction, Editing & Special Scripting : Sameer M. Haridas [MBA] Human Technologist CMD Zen Educational Technologies Chief Scripting : Sindu Menon, Vasanti Rao, Bhagyalaxmi Honorary Contribution : Dr.Venkateshwarallu [M.sc (phy). Ph.D] Senior Scientist ISRO Content By : Praveen Sali [M.sc. (Phy)] Experience Teacher R.T. Naik [M.sc (Phy)] Rt. Head Master Srinivas Kulkarani [B.Tech.] Experience Teacher SOCIAL SCIENCE [ 4 Volumes ] - Rs.590 Direction, Editing & Special Scripting : Sameer M. Haridas [MBA] Human Technologist CMD Zen Educational Technologies Chief Scripting : Sindu Menon Honorary Contribution : Dr.Venkateshwarallu [M.sc (phy). Ph.D] Senior Scientist ISRO