This is a set of 5 KVPY (INSPIRE) Study materials, SA Stream for 11th standard students. I ordered it through Flipkart when I was in 11th, but I didn't use it much as I was not interested in learning for KVPY. But the books are so useful. As there is no prescribed syllabus for KVPY, all lessons, mock tests, solutions will be useful for aspirants. This is also good for NEET research purposes. It is in good condition. Looks so good as new.