IISc stands for indian institute of science.The admission will be based on the result of JEE Main,JEE Advanced,NEET,CEED,UGC NET,KVPY exam scores,other national entrance test.IISc does not conduct any entrance examination for admission.Yes,you can join IISc in 2022 in undergraduation course after completing your class 12 in 2021.You can opt for Bachelor of science (research) program offered in IISc.For this you must have studied physics, chemistry and mathematics in class 12.The IISc Admission 2022 Application form will be released in February 2022.The last date to submit the application form will be September 2022.The date for the first set of admissions for (KVPY,IIT JEE Main,IIT JEE Advanced,NEET) will be September to October 2022.The date for commencing for the course is September 2022.