For doctoral studies, normally the PI has sufficient funding to support the student, but in its absence a fellowship via the National Eligibility Test conducted by the University Grants Commission or such student support schemes makes the applicant's case strong.
When pursuing doctoral studies, a principal investigator (PI) typically covers the student's expenses. However, if this is not feasible, alternative funding sources like fellowships from the National Eligibility Test (NET) administered by the UGC or similar schemes can be pursued to enhance the applicant's chances of success.