B.Sc Maths

nope

only Lucknow University is something that you can look for. there aren't enough Universities available you may. contact on 9450362679 this is head of mathematics Lucknow University

yes , can do bsc mathematics lateral entery

Practise previous year paper of bhu entrance exam.
Sample paper are also available you can practice them
Focus on NCERT more

IBM Mainframe courses offer opportunity to program on Mainframe. Course content is concepts on MVS, JCL, VSAM , CICI , DB2,COBOL etc . There is shortage of Mainframe programmers as Computer Science graduates want to work on new technologies of Java and Microsoft etc. Majority of training Institutes provide training on only simulated environment. If you plan to do Mainframe training select an Institute which provides hands on training on Mainframe. You can do course after BSc Maths easily.

Bsc maths will provide you diverse options. Maths teachers are always in demand. more over there are several jobs that demand maths.

Hi Rashmi,
Kindly refer the below link to download the syllabus as requested:
http://www.sxcran.org/Syllabus.aspx
I hope this information helps. Please feel free to revert.
Wish you luck.