Hey as per your demand here I am giving you details of eligibility criteria of TTA in BSNL

Nationality
Candidate should be Indian

Age limit
Candidate should be between 18-27 years,

Examination fee
Examination fee of Rs. 500/-

Qualification
Candidate should have done 3 years diploma in engineering

Departments
Telecommunications Engineering
Electronics Engineering
Electrical Engineering
Radio Engineering
Computer Engineering
Instrument Technology
Information Technology