I get around 30 marks in VARC if i use the strategy of choosing easy Rc and solving 2 only. But i cannot increase the score. On the other hand i have been recommended by some to just start solving with good pace such that you solve all the RCs and your score. will improve . Is this a good strategy

No, t think Via that way you will not be able to solve the whole paper, or you have to let go of VA that is not good for the score. Rather what you should do is to try to go a little faster in the Easy RC's and save time for 1 more RC (May be 2-3 questions only).

in the start just have very quick view of the question of rc do 2 rc which are straight forward and u feel easy then go to verbal para summary first cuz u ar already in the flow of reading passages now then 2 most difficult rc and rest of verbal dont leave tita as it wont matter if u get wrong i avoid fill in cuz most times i get it wrong if u have more than 10 min left go for the other rc do only question which seems easy and doesnt need interpretation or cr cus ur brain will be fucked by now and u need to rest a bit for dilr this is just my stratergy