Along with your diploma course, you should pursue your degree course in engineering. In this competitive world having only one diploma will not serve the purpose. For this, you need a degree.
As for the diploma, Sant Longowal Institue of Engineering and Technology is a good option. I have heard good things about their CSE diploma program from my friends who attend the institute. You can also go for other options if you have any.
But I will suggest that don’t rely solely on your diploma, for job offers. Doing a degree after the completion of your diploma will certainly make you more eligible for future job offers. After the completion of your degree program, you will notice that you will get an ample amount of opportunities as compared to your diploma program.
Overall Sant Longowal Institue of Engineering and Technology is good you will get ample amount of opportunity for growth and development.
You need to score 50% aggregate marks in 10th (with Mathematics, Science and English) or equivalent. For a candidate, who has not studied English as a subject, the condition of English may be waived off provided the candidate in his qualifying exam has studied in English medium or an equivalent subject.