Honestly, I know my strategy for RCs but for VA i don't understand which questions should i target like i give 10 mins for VA in selectional, n I focus on TITA questions but they are not that rewarding n after the mock i realise that i didnt even go through summary n fill in blanks.

any particular strategy i should follow?

In 10 min you have, first scan the VA section and then pick the question which you are comfortable with , usually para summary > para completion > odd one out or para jumble ( based on your strength).
for now, try giving VA focused mocks with this approach and then see where you are lagging behind and focus on that specific topic to improve the overall accuracy.