Hello Riya ,

Yes if you have completed your B.E then you can apply for IBPS RRB Scale 1 as the requirement is you should be an Indian Citizen and have completed yours graduation and the age limit for this post is 18-30 years 

you can go through their official page and can look for the registration process  

https://competition.careers360.com/exams/ibps-rrb

Here this link will help you in a good way and can ask for more clarification