mtech-1-sem-me-reliability-and-maintenance-engineering-19aa1302-2021.pdf DCRUST Question Paper and solutions, Deenbandhu Chhotu Ram University Of Science And Technology, Murthal, Haryana दीनबंधु छोटू राम यूनिवर्सिटी ऑफ साइंस एंड टेक्नोलॉजी, मुरथल, हरियाणा dcrustonline.com