I have been attempting CAT from past 2 years still I'm facing issues with VARC as i'm unable to cross 70% every time, how can i overcome this?

Work on increasing your accuracy, don't try attempt a lot of questions! Start with only 10-12 and gradually move up when your accuracy becomes more than 85%, I gave the CAT in 2021 and got 99.3%ile in VARC and this is exactly how I started Best of luck