Hey Kanhaiya Lal mittal,

If you want to go abroad and pursue b.tech I recommend you to give a Standardised exam and an english langauge exam. As you want to purse b.tech under standardised exam you can wirte SAT or ACT. Under langauge exam you need to write based on the countries acceptance. Few countries accept IELTS And few TOEFL. Based on the country you want to study write any one of the exam