one year 10 Answers. Non-Creamy Layer Certificate is valid only for one year from the date of receiving the certificate. Dear Sir, The Non-creamy Layer (NCL) Certificate would be applicable to OBC candidates who are covered under the Income/Wealth Test criterion CSC login edistrict CSC login edistrict, csc edistrict up registration, csc edistrict up registration, CSC login edistrict, CSC login edistrict, CSC login edistrict