Hey.

The cut off for admission in Institute of Medical Sciences, Banaras Hindu University under the All India quota for the SC category candidates was a rank of 17807 and a score of 511 marks in the previous year. Considering the previous year trends and that your score in 434 your chances for admission here seems to be less. You can use the link below for previous year trends.

https://medicine.careers360.com/articles/neet-cutoff-bhu/amp

Best of luck