Master of Science [M.Sc] (Mathematics) From BITS Goa, South Goa

ICT (Institute of Chemical Technology), Mumbai has received ‘A++’ accreditation by NAAC. In the current year 2020, ICT (Institute of Chemical Technology), Mumbai has been ranked by the NIRF at 18 for its Engineering degree course offered. BITS Pilani (Birla Institute of Science and Technology), Goa has been accredited ‘A’ grade by NAAC and is duly recognized by the UGC, offering degree programs at undergraduate as well as postgraduate level in the field of science and technology.

Admission:

Textile degree in ICT (Institute of Chemical Technology), Mumbai:

• The candidate opting for a Textile degree in ICT (Institute of Chemical Technology), Mumbai is selected on the basis of entrance examination of GATE, GPAT.

• The total fees for the Textile degree in ICT (Institute of Chemical Technology), Mumbai is INR 1.53 Lacs.

MSc Maths at BITS Pilani (Birla Institute of Science and Technology), Goa:

• The candidate opting for MSc Maths at BITS Pilani (Birla Institute of Science and Technology), Goa is selected on the basis of the entrance examination of BITSAT.

• The total fees for MSc Maths at BITS Pilani (Birla Institute of Science and Technology), Goa is INR 4.13 Lacs.

Placements:

Textile degree in ICT (Institute of Chemical Technology), Mumbai:

• The top recruiting companies visiting the campus of ICT (Institute of Chemical Technology), Mumbai to offer placements to the graduates in the field of Textile are Tata Motors, Reliance, Johnson Johnson, Nerolac, Jacobs, ITC, Exxon, Cipla, Asian Paints.

• The average annual graduate salary offered for placement is INR 4.8 Lacs.

MSc Maths at BITS Pilani (Birla Institute of Science and Technology), Goa:

• The top recruiting companies visiting the campus of ICT (Institute of Chemical Technology), Mumbai to offer placements to the graduates in the field of Maths are Bajaj Auto, Adobe, Oyo, Morgan Stanley, Uber, Dell. IBM, Flipkart, Genpact, Wipro, Intel, Cognizant, Amazon.

• The average annual graduate salary offered for placement is INR 6.15 Lacs.

Both courses have their advantages and disadvantages. These are some of the key information about the two courses. Go through them and decide which will be better for you.

I have friends pursuing courses you mentioned above at either institute. Based on the discussion I have with them, here is what should be best for you,

1. The institutes can be considered quite equivalent to one another, but BITS Goa has an upper hand. 
2. M.Sc at BITS Goa can be specialized following the first year, during which you will be allocated a B.E course depending upon your CGPA. 
3. With a 6 CGPA, you can get Mechanical Engineering, which is quite an easy job. In contrast, it is better than ICE.
4. However, if your scores are high enough then you might get a seat in CSE. 
5. By the end of 5 years, you will be receiving a B.E and an M.Sc degree, which is nonetheless a smarter choice. 

However, the fees at BITS Goa are quite a lot. 

There are different viewpoints for the same question. It primarily depends upon what is best for you, and whether or not the course you are willing to take interests you. 

One of my friends encountered a similar problem likewise, and addressing the same, here are some points you might want to consider before diving into any conclusion,

1. A dual degree in Mathematics, Physics, and Chemistry is claimed as a part of Science, while others are considered in the case of Engineering. You will learn the theories of science instead of the application of technology.
2. In Mathematics, you are supposed to learn the series of higher-order and their respective application. While, in Mechanical Engineering, you will learn more deeply about Engines, Boilers, Automobiles, Refrigerator Systems, and much more.
3. A single degree, like Mechanical Engineering, CSE, EE, Civil Engineering, or Chemical Engineering, can be more advantageous than dual degrees. 
4. If you opt for a dual degree in Mathematics, you have a higher probability of becoming a mathematician or a professor. But, in case you pursue Mechanical Engineering from NIT Surat, then you bear higher chances of securing a placement offer at top-tier MNCs.
5. Your choice should always remain ahead of most others. The one piece of advice is that in NIT Surat, you supposedly cannot change your degree from M.Sc to B.Tech following the 1st year and vice versa. 

You should research the same for BITS Goa and find whether or not the rule is similarly applicable in the institute. This is the basic difference you can find between both institutes.