This set of 4 videos, should clear most of the confusion regarding how to prepare Gujarati Literature, topicwise booklist etc.
Here is the link: http://www.youtube.com/playlist?list=PL0A116218CF7AB117
Links to individual videos:

Q. Where to find the previous years’ paper for Gujarati literature for UPSC Mains?

Answer: we have created an ebook with all the gujarati literature papers from 2007-19 in topicwise as well as yearwise manner . You can get it at this Ebook at an affordable price of just ₹149 from AMAZON!