On 21st March 2024 the Election Commission of India (ECI) has put up the full list of donors who purchased electoral bonds and the political parties that encashed them. You can find all the details in CSV format here
Source - https://www.eci.gov.in/disclosure-of-electoral-bonds
If you can't access above link due to Geographic restrictions, original PDF can be found in PDF folder
Dataset is also available on Kaggle here.