CBOI Referee / Judge Registration Personal Details Email* Choose ID* Voter ID Aadhar Card Passport Aadhaar / Voter / Passport No.* CBOI Grade First Name* Last Name* Father's Name Mother's Name Date of Birth* Blood Group Gender* Male Female Others Username* Password* Confirm Password* Permanent Address Address District State Pin Code Qualifications Qualification Chessboxing Achievement Referee / Judge State Referee / Judge CBOI Referee / Judge WCBO Photo and Signature Photo* Size Restrictions: Please make sure the image size is equal to or larger than 150 by 150 pixels. ID - Aadhaar / Voter / Passport