Hello Aspirant  ,

Both UPSC and NEET are one of the most famous and competitive exams in India ,You can also give both the exams without any problem .

As you know chances of selection in UPSC CSE is very low so everyone should have a backup plan and if you qualify NEET and get a good college you will have a very good backup and bright future so even if you unfortunately fail you will have a backup .

You can do your UPSC preparation during your course period and also choose  a medical optional which will help you get better marks .

Hope this helps.