I studied from Spectrum and Class 12th NCERT and for 2-markers i referred 'Up to the mark' and 2-markers given in the test series.
I studied from the Vajiram ' Yellow Book and supplemented it from class 12th NCERT i.e., democracy at work.
National Issues and Social Issues
I referred last one year Yojna , one year chronicle and Vajiram 'class notes
I didn't prepare at all.
I referred one year chronicle and supplemented it with vajiram'class notes.
I referred India Year Book , Economic Survey,Uma Kapila ,and Vajiram class notes .
Science & Technology
I didn't study S&T and lost some marks in this section , hence i am unable to guide you for this section.
I studied from S K Manocha's book and I practiced it in the same way as I would have to appear in my Mains keeping the time and graph paper along with the question papers.
With warm regards
Umesh Agarwal (AIR -237)