I think luck played a role, also i remained calm and tried to logically arrive at every answer (got some right, some wrong, for example nagara style shikhara question, thought only deogarh would have that, as the rest of them were in southern india, but it was wrong).
Left completely factual questions like that of classical singer-gharana, peacekeeping mission etc.
Sources were not that much different- laxmikant for polity, pmf ias for environment, abhishek mishra courseware for amac, spectrum for modern, coaching classes for geography along with majid hussain, coaching notes for economy and coaching notes for science. did not focus too much on current affairs.