Hi 
@Anmol_N_A,
Welcome to the MongoDB Community forums 
No, it’s not retired, the MongoDB Associate Developer Exam has been revamped. You can find all the details related to the exam here.
You can find the syllabus and the updated study guide for the MongoDB Associate Developer Exam here.
Please email the voucher details to certification@mongodb.com and the team will be happy to assist you.
I hope it helps!
Best,
Kushagra