I have given the exam of class 12th shall i apply the iiser application form
Hello Ayush,
Yes, you should apply for IISER. It is one of the premier institute in India which carry research in core sciences subjects. If you want to pursue your career in the research field and have a passion for science then you must apply in it. There are three different channels through which you can apply in it - KVPY, JEE and SCB channel.
All the best.