B.Sc

Yes, you can admission with 70%. From year 2017 Panjab University is organising centralized counseling for all of its courses in the affiliated colleges. However, this isn't the case for B.A
Admission for BA in DAV will be tough with 51% marks however it depends on many factors. If you belong to Chandigarh and don't have any kind of quota then you may get admission in third round of counselling. If you have non-UT pool and you don't have any quota you mayn't get admission. However, there is always a chance of vacant seats or left over seats and the subject combination you choose. So, you may get admission in DAV 10, Chandigarh. Just fill up the form and wait for the counseling process.

There are vast opportunities for the aspirants who have passed. Sc. Mathematics. They can pursue their higher studies in different areas. They can also look for jobs in different fields in private and public sector.
Scope for higher studies after B.Sc mathematics
There various options available for B.Sc mathematics graduate to pursue their higher studies. Details of best higher studies options for B.Sc mathematics graduates are given below:
M.Sc/Ph.D.: One of the best higher studies options available for the B.Sc mathematics graduate is to do Master's degree in mathematics followed by PhD or M.Phil. Thus they can find a promising career in research or teaching field.
MCA - This is the best higher study option for the B.Sc mathematics graduates who wish to pursue their career in IT sector. Research agencies like defense research and development organisation prefer MCA graduates with mathematics background in their remote sensing centers.
MBA: This is also one of the best higher study options for the B.Sc mathematics graduates who wish to pursue their career in management field. If they do the specialisation in finance in MBA, then they can reach up to higher positions like chief finance officer in corporate sector.