No there is no board exams in Aakash institute, it is one of the best coaching institutes in India. It is best for IIT JEE , Medical and NEET preperation. Students can join the coaching institute any time. You can join from any boards, be it CBSE, ICSE or WB. It doesn't matter  They will guide you in such a way which will be helpful for your board exams as well as upcoming competitive exams. Their mock tests and guidance will help you to build a clear concept. Their study materials will help to get an idea of previous year's exam .