As you asking here I am telling process to do check BSNL TTA Exam call latter/admit card

Go to the BSNL official site

Now, the home page will appear on the screen.

On the home page, click on recruitment option

By click there you will land on recruitment page

Over there you need to do click on admit card/call latter link

Now, enter the user name and date of birth as passwords.

Finally, click on submit button.

Now, the admit card will appear on the screen.

Take a copy of the BSNL JE Admit Card to carry to the exam center.

BSNL TTA Exam syllabus
General Ability

General English.
Verbal Reasoning.
Non-Verbal Reasoning.
Arithmetic Ability.

Basic Engineering

Applied Mathematics.
Applied Physics.
Basic Electricity.
Electronic Devices & Circuits.
Digital Techniques.

Specialization

Electrical.
Communication.
Network, Filters & Transmission Lines.
Instruments & Measurements.
Control Systems.
Microprocessors.
Computer.