hello aspirant,
i will mention you the both the streams and i will mention which stream moulds you in to a good and bright career.
b.sc computer science:
1) There are bright career prospects for computer science professionals or software professionals in recent scenario.
with in the opening of huge software and IT companies in india, the job opportunities for trained professionals have increased considerably,
In the current scenario, india is known to be a leader in software and IT sector.
2)The software and IT companies are the major employers of computer science graduates.
They offer best packages to the young graduates which are unmatched with other branches of science.
3)The salary package ranges from 35,000/- to 80,000/-.
with in 1-2 years of experience, one can earn salary ranging forms an annual pay of 10 lakhs.
b.sc maths :
The degree holders in mathematics having a excellent problem solving abilities and can hold a wide range of prestigious and rewarding positions in both public and private sector.
also, there are other options like graduates in this course can go for banking, finance,and insurance

• The average salary ranges from 2-6 lakhs per year for an b.sc maths graduate.
• based on different job positions like mathematician,data analyst, numerical analyst whose normal package ranges from 3-6 lakhs.
• conclusion:
  
• 1) To sum up, i suggest b.sc computer science has wide range of career possibilities like software, web designer, web developer whose annual package is atleast 10 lakhs.
• 2)so after all comparisons,  b.sc computer science stream is very well and good and as the emergent technologies are completely related to IT sectors and over a past few years it has a significant growth.

thank you