Big Data & Analytics

MCA with specialization in big data analytics course is sort of equivalent to M.Sc data science
Look at both words "Data Science" and "Big Data", what is common? "Data". Both Data Science and Big Data are related to Data-Driven Decision but are significant.
Data-Driven Decision (with the expectations of the better decision and increase value) processes and involves different stages
Capture Data
Process & Store Data
Analyse and Generate Insights
Decision & Actions
Big Data is typically involved in Step 2 and that too in all the scenarios. Based on volume, variety and velocity, one may require Big data & related technologies. Big Data & Technology helps in reducing cost in the processing volume of data and also making it feasible to do a few typically analyses.
Data Science is involved in Step 3.
It involves in using Statistical, Mathematical and Machine Learning algorithms to use data and generate insights. Whether a data is "Big data" or not, we can use Data Science to support Data Driven Decisions and take better decisions.

Dear ManuShree!
Generally, in for Bachelor's in Data Science, you need to be from PCM background. But still, there are some who are working as a data analyst after commerce background. For specific degree, you need to go for 'Statistics' (some university asked you to be from Science stream for that). But in addition, you need to be excellent in Programing, Deep Learning, Machine Learning, Neural Network, Data Visualisation etc. Coming straight to your point, you may check the website of "SP Jain University". It's one of the greatest college in India. They currently started a Bachelor course in Data Analysis. Just have a look there. Hope this helps. Upvote the answer if you feel satisfied. Ask any query at anytime.
Good Luck.