To apply, visit the BECIL website and access the Career section. There, select the appropriate advertisement number and proceed with the registration process, providing your personal details. Upload scanned copies of necessary documents such as your photo and signature. After completing the application, submit it and proceed to pay the required fees online. Additionally, email the scanned documents to the provided email address. Stay vigilant for any communication via email or phone regarding further steps. Finally, ensure to retain a printout of your application for future reference.