Thiruvanthapuram and Chennai are both turnaround flights.
It's a fairly typical roster - well, slightly better than average, (I'd be happy to see that roster, others maybe less so) but it must add up to a lot of hours, probably over 110.
New comers can go anywhere - my first ever flight was to Kuala Lumpur, although your supernumerary flights (2 only) will be turnarounds.
Don't stress too much about having all the medical stuff in order, it does make it a bit more straight forward having it all set, but mots of trainees have to get stuff sorted after they arrive in DXB.