As you are looking for the books which IES made easy institute refers for Electronics Engineering students to crack IES exam , here I am providing same for you .

Optical Fiber Communications
John M. Senior

Measurement and Instrumentation
Electrical & Electronics Measurement and Instrumentation
A. K. Sawhney

Electronic Instrumentation
H.S. Kalsi

Electrical Engineering Material Science
S. P. Seth

Network & Systems
D. Roy Chaudhury

Engineering Circuit Analysis
William H. Hayt

Microwave Devices & Circuits
Samuel L Liao

Microwave Engineering
Sanjeev Gupta

Microwave Engineering
David M. Pozar

Microwave & Radar Engineering
M. Kulkarni

Microprocessor Architecture, Programming & Application
Ramesh S. Gaonkar

Computer Organisation and Structure
Stalling

Microprocessor & Interfacings
Douglas V. Hall

Computer Architecture & Organisations
Morris Mano

Digital Design
M. Morris Mano

Digital Systems
Tocci & Widmer

Modern Digital Electronics
R.P. Jain

Elements of Electromagnetics
Sadiku

Engineering of Electromagnetics
W.H. Hayt

Antenna & Wave Propagation
K.D. Prasad

Elements of Engineering Electromagnetics
N. N. Rao

Control System Engineering
I. J. Nagrath & M. Gopal

Automatic Control Systems
B. C. Kuo

Linear Control Systems
B. S. Manke

Monochrome and Colour Television
R. R. Gulati

Satellite Communications
Timothy Pratt & Charless W. Bostian

Signals and Systems
Aaln V Oppenheim,
Aaln S. Willsky & S. Hamid Nawab ( Prentice Hall of India)

Communication Systems
Simon Haykins

An Introduction to Analog and Digital Communications
Simon Haykins

Communication: Analog & Digital
Singh and Sapre

Modern Digital and Analog Communication Systems
B.P. Lathi

Electronic Communication Systems
Kennedy and Davis

Integrated Electronics: Analog & Digital Circuit & Systems
Jacob Millman & Christos C. Halkias

Microelectronic Circuits
Sedra & Smith

Electronic Devices & Circuits
J.B. Gupta

OP-Amp and linear Integrated Circuits
Ramakant A. Gayakwad

Solid State electronic Devices
Streetman and Banerjee

Semiconductor devices
S. M. Sze