Seeking Advice on Cancer Treatment in Bihar/Patna

My mother diagnosed with cervical cancer and papillary carcinoma, and I am trying to decide the best place for treatment. Right now, I have references in AIIMS Patna and Tata Memorial Hospital (TMH) Muzaffarpur, so I am considering these options along with IGIMS Patna. I wanted to ask—how is the cancer treatment at AIIMS Patna and IGIMS in terms of facilities, expertise, and overall care? Would it be better to go to Tata Memorial Mumbai instead, or is cancer Hospital in patna a good alternative? I know TMH Mumbai is one of the best in India, but traveling that far could be challenging if the treatment in Bihar is reliable. If anyone has personal experiences or recommendations, please share. I’d really appreciate any insights on doctors, treatment quality, or anything else that might help me make the right decision. Thanks in advance!