For Part 1 Reasoning Shortcut PDF- Download
For Part II- Use Arihant GK 2019 - Book Details
Part III-Teaching Aptitude Material PDF - Download
Part 5 General English - Use Bankersadda-Click here
Part IV- For Library Science use IGNOU BLIS Study Material and Kanchan Kamila PDF.
Kanchan Kamila pdf
Self Coach Page: https://www.lisquiz.com/p/coach-yourself.html
Because of degree level standard, Questions will be easier in Library Science.
There is no shortcut to clear any exam.
Only thing you need to do is Reading.
I suggested you the good books.
Read daily newspapers.
For Library Science simply read above said any one books and it will be enough.
Allot Time, Read, Revise, Attend Mock tests.
All the very best.