Hello dear ,

Yes definitely a medical graduate is eligible for  cds exam. Infact anyone who hold a graduation degree is eligible for cds exam. But here the age factor should be kept it mind.

Age criteria for different academies is given below;

IMA - 19 to 24 years

OTA - 19 to 25 years

INA - 19 to 22 years

AFA - 19 to 23 years

But a medical graduate would only be eligible for IMA and OTA (men and women both). T he student who are not doing engineering can go only for  Army . They are not eligible for Air force and Navy.

For further information please check this link given below,

https://www.google.com/amp/s/competition.careers360.com/articles/cds-eligibility-criteria/ampamp

Hope it would have helped.