BENGALURU: A woman from Ramanagara approached a local court, accusing a Bengaluru-based hospital of injecting her with contaminated blood during an operation in February 2014, resulting in her contracting HIV.Jayanna Nallappa, 40, and her brother, resident of Lakkasandra, approached the court, requesting it to direct police to take action against the hospital. Based on the private complaint register (PCR), Sadashivanagar police took up the case on Tuesday for further investigation.According to the PCR, the patient was admitted to hospital with complaints of infertility in 2013, and underwent a surgery for excision of fibroid in 2014. Prior to the operation, she underwent a couple of blood tests along with an HIV test, on the advise of the treating doctor. The report showed her to be HIV-negative.The patient alleged that after undergoing transfusion of one unit of packed blood cells from an unknown donor at the hospital during the surgery, she was reported to be HIV infected the following day. She has accused the hospital of committing gross medical negligence by violating the National Aids Control Organization (NACO) guide lines and those of blood transfusion.The patient accused hospital authorities, the doctor concerned and the Integrating Counselling and Testing Centre (ICTC) department of tampering with medical records to cover up evidence of negligence by causing a patient to get HIV infection via blood transfusion.Dr Nandakishor V, chief blood bank in-charge at MS Ramaiah Memorial Hospital , said: “The patient was HIV-positive before the surgery and before the blood transfusion was done on her.We have all medical reports to prove that she was HIV-infected even before she underwent the blood transfusion.The donor was not infected and we haven't violated any rules of blood transfusion in her case.“