first of all, there is no such passing marks theory than can be applied to NEET exam. instead, the things here matter are many like your age, your category, marks , rank and all that.

for you have mentioned here general, you must score 50th percentile of the maximum marks to secure your seat for counselling.

keep checking for the counselling dates and also your percentile will be mentioned in the result that NEET would be declaring.

all the best