Sorry to say it is very hard to get withthatw score... You can start practice now for next year... Or you can join any good reputed coaching centre like sunny coaching classes etc...

Hii shipra

Unfortunately you have very less chances in cmc ludhiana with a score of 303. You can try for deemed universities or you can try again next year. You can predict your colleges from link given below

https://medicine.careers360.com/neet-ug-college-predictor?icn=neet-clgpd&ici=qna-answer

Good luck