If they are asking for the medicals, u have to get it done again because this medical will directly go to CIC, they want medicals that way, the earlier one was submitted by you , that is not valid...
But surprisingly so fast you get request for medicals, u submitted your file only last month?
If you have done your medical recently (within 1 yr) n submitted the same wit yo file then don't worry... resubmit the same e medical acknowledgement... 1st read the email properly whether they specified any extra medical tests are to done... if nothing is mentioned they resend the earlier medical acknowledgement.
Even I got the same medical email with nothing extra tests specified and I resent it so relax