I read in class 12 but i optimis 12

pass

See if your board provides your marksheet with a aggregate score declaring your pass, then you have passed the examination. In general, for most of the boards, passing both Theory and Practical examination are mandatory. So if you can't understand you have passed or not, then consider visiting your school and get it discussed, the school authority will provide you adequate information.

Also if you wish you can visit the official website of your Board in order to know about the rules and regulations of examination.

I hope this helps. Wish you a great eve!