BTECH-1-SEM-ELEMENTS-OF-MECHANICAL-ENGINEERING-11N509-MAY-2023 BTECH-1-SEM-ENGINEERING-MATHEMATICS-1-11N501-MAY-2023 BTECH-1-SEM-INTRODUCTION-TO-BUILT-ENVIRONMENT-11N506-MAY-2023 BTECH-1-SEM-BASIC-MECHANICAL-ENGINEERING-1E3107-2023