CISF recruit personnel in Constable Cadre for the post of Tradesmen in different trades. The eligibility criteria are given below… 1. Nationality: Candidates must be a Indian male citizen 2. Age Limit: Candidates’ age must be between 18 to years. Age relaxations will be extended for following rules. 3. Age Relaxation: Category Relaxation (in years) SC/ST 5 OBCmore..