Hello Radhika.
I think you should ask the question more specifically for a stream because in the way you have asked,there can a lot of exams that can be given.Suppose,if your stream is science,you have exams in field of engineering, medicine, bachelor of science etc.For engineering there are JEE Mains and Advance,ComedK,VITJEE,BITSAT,KIITJEE and many more.For medicine there are NEET,AIIMS,JIPMER etc.If your stream is commerce,you can go for CA,B.com,BBA etc.For that there are exams like CPT or CA foundation course, entrance exams for different B-schools like IIM, Symbiosis etc.
Hope this helps you with your query but try to be more specific with stream.Good Luck!