How to prepare for BSNL TTA Exam

I am an ECE student, how can I prepare for BSNL TTA Exam???

The Bharat Sanchar Nigam Limited (BSNL) conducts recruitment examination for Telecom Technical Assistant TTA. The Selection is done through a competitive Examination followed by a medical test.

Preparation tips:
To crack this examination you should start preparation as soon as you can do. You should solve previous year paper, which will give you basic idea about the paper pattern. This exam contains three sections that are:

Section 1: General Ability - This section is of 20 Marks
Section 2: Basic Engineering - This section is of 90 Marks
Section 3: Specialization - This section is of 90 Marks

This exam covers following topics:
General Ability Test:
English Language and
General Awareness

Basic Engineering:
Applied mathematics
Applied physics
Basic electricity
Electronics devices & Circuits
Digital techniques

Specialization:
Electrical
Communication
Network, filters & Transmission lines
Instruments & measurements
Control systems
Microprocessors
Computer