Hello Animesh,

I am attaching the eligibility criteria down here
I hope this helps you

WBCS Exam Eligibility Criteria : West Bengal Civil Service (Executive) Examination Eligibility Details are given below….

Eligibility Conditions: A candidate must have the following qualifications as per the notified recruitment rules issued by Govt.

I. The candidate must be

(a) A citizen of India (either natural or by registration), or
(b) Such other nationals as declared eligible by the Govt.

Provided that a candidate belonging to category (b) shall be a person in whose favour a certificate of eligibility has been issued by the Government.

II. Age Limit: Age not below 21 years but not more than 32 years on the 1st January of the year of examination for services and posts included in Group ‘A’, ’C’ and ‘D’ (i.e. born not earlier than the 2nd January, 1981 and not later than the 1st January, 1992). For the West Bengal Police Service only (i.e. Group ‘B’ Service) age not below 20 years but not more than 32 years on the 1st January of the year of examination (i.e. born not earlier than the 2nd January, 1981 and not later than the 1st January, 1993).

Concession in Age : The upper age limit is relaxable for S.C., S.T. & B.C. candidates of West Bengal, by 5 years for S.C. & S.T. candidates and by 3 years for B.C. candidates. In the case of Persons with Disabilities (PWD), the upper age limit is relaxable upto 45 years. S.C./S.T./B.C. candidates of other States shall be treated as general candidates.

Note:

(i). Age as recorded only in the Madhyamik or equivalent certificate will be accepted.

(ii). The age limits apply to all candidates whether in Government Service or not.

III. Educational Qualification: Candidate must possess a degree of a recognized University and have ability to read, write and speak Bengali (not required for recruitment in the case of candidates from hill areas of the district of Darjeeling, i.e. for Nepali speaking candidates).

Note:

(i). A candidate in whose case a certificate of eligibility is necessary may be admitted to the examination but the offer of appointment may be given only after the necessary eligibility certificate has been issued to him by the Government.

(ii). Good health and character and suitability in all respects for appointment to Government service.