BHEL — I am complaining about missing of my medical book

Sir,
I am indrajeet kumar ujjwal (Staff No. 3061930) working in BHEL. My office address is as below
BHEL, PEM, PPEI Building, Plot no. 25, Noida, U.P. 201301.
I am residing in sector 14 Noida. I lost my medical book, issue by company and I am not able to find the same.