According to Chief Secretary Haryana instructions No. 42/178/2008-SGSI dated 21.05.2009 and as per the advice of Chief Secretary Haryana vide U.O. No. 17/20/2015- SGS II dated 08.08.16, the Government of Haryana is pleased to declare the diploma courses of minimum two years duration under the aegis of Department of Technical Education, Haryana Government and affiliated to Haryana State Board of Technical Education, Panchkula equivalent to 10+2.
For complete notification see this document >> Equivalency.pdf