I have completed 12th after that I'm join job so that I not able to study on that time so I want to continue my studys again.
Hi Priya,
It is nice to know that you are willing to continue your studies again. For it you just need to first of all figure out the stream you are interested in , to go for further studies probably for your graduation degree and then you need to look for the institution for admission and follow their admission procedure and for the time you had a gap from your studies, you can just put on gap certificate stating the reason and then can very well continue studying further.
Hope, it helps.