now i am a repeater .how much mark i supposed to get in neet 2020 to get admission in govt medical college paripalli since my father has esic insurance group3 and also belongs to OBC .can this esic will help me to get admission in any institutions like AIMS or other govt medical colleges in kerala

Hiba, now according to ESI C rules for admission to Medical Colleges under IP Quota, it doesn't matter which group the Insured belongs to. The opportunities are equal. Now IP Quota seats are filled under All India Quota by the DGHS on behalf of the NMC. Now AIIMS and JIPMER seats are also filled through All India Counselling. You can certainly apply  under IP Quota but the fact is unless you really score excellent marks, a seat in AIIMS will be difficult. Anything less than 650 cannot get you a seat in AIIMS because AIIMS has no IP Quota yet. Usually the IP Quota seats are filled in the mop  up round and by the most branches of AIIMS will be filled up. Even with OBC reservation, you will still need nothing less than 650.