In my opinion, a B Pharmacy at BITS Pilani is better than a BTech in mining at NIT Raipur. There are many opportunities one can avail of by doing this course. Some of them have been listed below 

• You can do an M Pharmacy from a prestigious US University or from NIPER Mohali. You might secure an excellent job abroad. 
• As far as core placements are concerned, there are far more pharmaceutical companies than mining companies. Moreover, BITS offers elective courses in 2nd year and minor courses so you can opt for CS minor courses and even get placed in a CS company.
• Another future prospect of doing B Pharmacy is that you can join any pharmaceutical company and work hard to secure a better position.
• You can also pursue a Ph.D. degree and pursue a career in research.

In all, choosing a B Pharmacy at BITS Pilani will offer better opportunities than a BTech in mining at NIT Raipur.