Hi Amin,

In case of CLAT, the application fee which is 4000 is equal for everyone. If you secure an admission through CLAT then the participating NLU's provide a concession for candidates who are below poverty line. Also, Banks provide special concessions for candidates below poverty line to complete their education.

If the CLAT application fee is not affordable you can apply for AILET conducted for admissions to NLU Delhi, where there is no application fee and NLU Delhi also provides certain concessions for candidates who come from BPL families.  

Hope this helps. If you have any other queries please feel free to ask