B.Sc Maths

Hi Suman, Both courses are good, It is depend upon your interest. Here's the information of both degrees:
- BCA
Syllabus of the three-year BCA course includes subjects involving computer languages, database management, operations systems, logical analysis, software design and client server technology. Several universities offer 6this 3 years undergraduate course across India. - Scope
The most logical step after the BCA course is to pursue an MCA. Alternatively, you may look into jobs in the IT sector or related fields. - Bachelor of Science (B.Sc)
It offers theoretical as well as practical knowledge about different subject areas. These subject areas usually include any one of the main Science fields (Physics, Chemistry, and Biology) and other fields depending on the specialisation a student opts. Pursuing a B.Sc. Course is most beneficial for students who have a strong interest and background in Science and Mathematics. The course is also beneficial for students who wish to pursue multi and inter-disciplinary Science careers in future. - Top Universities in India
1. Delhi Technological University, Delhi
2. University of Calcutta
3. SASTRA University, Thanjavur
5. Andhra University College of Engineering, Visakhapatnam
6. Lovely Professional University, Punjab
Good Luck.

Dear Manish,
Well, you can learn in multiple ways, some people learn everything online while some join programs and courses to become a data scientist. I think one needs to cover a certain topics online while certain topics can only be learnt in classroom training module.
Python Basics, Intermediate and Advanced statistics, Probability and Linear Algebra, Linear Regression, Time Series and Cost Function, Types of Data & Exploratory Data Analysis, Collecting, extracting, querying, cleaning, and aggregating data for analysis, Data Sources, Cleaning and Wrangling, Working with APIs and Web Scraping.
These will help you learn the advanced topics of data Science faster and in depth. I would always recommend data Science aspirants to go for a programme which is classroom-based, instructor-led and heavily practice driven. You will come across a lot of institutions, courses, programs that will help you learn data Science. Some are way expensive while some are reasonable. But, one very important thing to keep in mind while you are enrolling for such courses is to know the worth of it in terms of knowledge and what at the end of the course you are developing within yourself. Remember: "80% practical & 20% theory".
Hope this helps.