Rithika, to be eligible for scholarships, you should have an impeccable Academic record and a Strong Statement of Purpose. For an Educational Institution to fund your studies they should have a reason to do so. So first you need to decide the Country you want to study your B.Tech in. Then you should appear for Language Proficiency Tests like TOEFL, IELTS, etc. Based on the score, you should filter the Colleges that you want to study in along with the programmes they offer. Next, you should be ready with a strong Statement of Purpose so as to let the University know why they should accept your application. You have to fill in the University applucations, pay the application fees and submit the required documents. Most Universities offer merit based and need based scholarships. You need to provide the necessary documents to avail the relevant scholarship. If the University accepts your application, then it will also.let you know if you are eligible for a Scholarship or not.