In jee form state of eligibility is the state from where 12th has been done which I have done in MP so can I use that caste certificate.

Sorry for state of eligibility really  i'm talking about residential certificate. The State Code of JEE Main 2019 means the code of the State from where a candidate has passed class 10+2 or equivalent exam on the basis of which he or she will become eligible to appear in the entrance exam.If you have done your 12th from MP then your state of eligibility code will be MP 

You can't use your caste certificate in place of state of eligibility certificate. 

I am dropper and living in UP  now but passed my 12 in MP so I can't make MP's caste certificate.

Sarvesh Pal Bro check your cast in central list. If it is mentioned there then you can use it every where in India.
For better explanation you can also contact jossa and ask them.