GATE books

GATE Computer Science Books
  Mathematical Logic: Discrete Mathematics by Tremblay Manohar, Probability , statistics and queuing theory " by S.C.Gupta & V.K.Kapoor
  Graph Theory: Narsingh Deo
  Linear Algebra: Higher Engineering Mathematics by B.S. Grewal
  Numerical Methods: S.S. Sastry
  Formal Language and Automata Theory: Formal Languages and Automata theory", J.D.Ullman etal
  Analysis of Algorithms and Computational Complexity: Introduction to algorithms" - Cormen etal" Computer Algorithms" - Horowitz and Sahani
  Digital Logic: " Digital Logic circuits and Design " by Morris Mano
  Computer Organization: " Computer Organisation " by Morris Mano

Some Other Important books
" Multiple choice questions " - Timothy . J . Williams , TMH publications
" Gate Question Papers " - G.K.Publishers

GATE Electronic and Telecommunications Engineering Books
  Network Analysis: Van Valkenburg
  Network and Systems: D. Roy Choudhary
  Integrated Electronics: Jacob Milman & C. Halkias, Millman & Grabel
  Integrated Circuits: K.R. Botkar
  Op. Amps & Linear Integrated Circuit: Gayakwad
  Digital Logic & Computer Design: Moris Mano
  Signals and System: Oppehum, Willsky & Nacob
  Automatic Control System: Benjamin C. Kuo
  Control System Engineering: Nagrath & Gopal
  Principle of Communication System: Taub & Schilling
  Communication System: A. Bruu Carlson
  Electromagnetic Waves & Radiating Systems: Jardon & Balmain, JD Kraus

GATE Electrical Engineering Books
  Network Analysis: Van Valkenburg
  Electromagnetic: Willain H. Hayt
  Electrical Machinery: PS Bhimra
  Electrical Machines: Nagrath & Kothari
  Power System Engineering: Nagrath & Kothari
  Electric Power Systems: CL Wadhwa
  Automatic Control System: Benjamin C. Kuo
  Control System Engineering: Nagrath & Gopal
  Electrical & Electronic Measurement and Instrumentation: AK Sawhney
  Integrated Electronics: Milman & Halkias, Millma & Grobel
  Digital Logic & Computer Design: Morris Mano
  Power Electronics: PS Bhimra

GATE Civil Engineering Books
  Strength of Materials: Gere & Temoshenko, B C Punamia
  Structural Analysis: Negi, S Ramamurtham, C K Vang
  Concrete Structures: Punamia & Jain, H J Shah
  Steel Structures: Duggal
  Soil Mechanics & Foundation Engineering: Ranjan & Rao, Venkat Ramaiha, S K Garg
  Fluid Mechanics and Hydraulics: Modi & Seth, R K Bansal, Subramanyam
  Hydrology: Subramanyam
  Irrigation: S K Garg
  Highway Engineering: Khanna & Jasto, Kadiyali


GATE Mechanical Engineering Books
  Enginnering Thermodynamics: PK Nag
  IC Engine: ML Mathur and RP Sharma
  Gas Turbine and Propulsive Systems: PR Khajuria & SP Dubey
  Fluid Mechanics: Modi & Seth, RK Bansal
  Compressible Flow: SM Yahya
  Heat and Mass Transfer: JP Hollman, RC Sachdeva
  Refrigeration and Air Conditioning: CP Arora, Domkundwar
  Fluid Machinery: Jagdish Lal, RK Bansal
  Theory of Machines: RS Khurmi, Malik & Ghosh
  Mechanical Vibration: Grover
  Machine Design: Shigley, VB Bhandari
  Material Science: WD Callister, IP Singh
  Production Engineering: Kalpkjian Schmid, Amitabh Ghosh & AK Malik
  Industrial Engineering: O P Khanna, Buffa & Sarin
  Operations Research: Kanti Swarup
  Strength of Materials: Gere & Timoshenko, BC unamia, Sadhu Singh