Exams can be attend by B.Tech 3rd Year Student

I want to participate in IAS exam, can i participate while pursing B.Tech 3rd year, please provide IAS eligibility???

[Arun Vats]

After B.Tech 3rd Year you can give entrance for various PSU'S like BHEL,
NTPC,
ONGC,
BPCL,
BSNL,
DRDO,
IPCL

UPSC Exams:
NDA

SSC Exams
Loco Pilot
Technician

As you want to ask about IAS exam, sorry to say but without completing B.Tech you can participating UPSC IAS exam, because for civil service exam candidate must be Graduate any stream from any recognized university.

IAS stands for Indian Administrative Service.
The exam is Civil Service Exams & conducted by Union Public Service Commission once in a year.

The IAS exam eligibility criteria are here:

Qualification:
The candidate must hold a degree of any of Universities incorporated by an Act of the Central or State Legislature in India or other educational institutions.

Age limit
A candidate must have attained the age of 21 years and must not have attained the age of 32 years on the 1st of August, 2014.

Exam scheme
The Civil Services Examination will consist of two stages:

Civil Services Preliminary Examination (objective type) for the selection of candidates for the Main Examination; and

(ii) Civil Services Main Examination (written and interview) for the selection of candidates for the various services and posts

(iii) Number of Attempts

(v) Applications are now invited for the Preliminary Examination only