While "free PDF" is a common search, here are the legitimate digital sources where you can often find a legal PDF or eBook of the Bengali translation:
The Bengali translation of The Count of Monte Cristo, titled "দ্য কাউন্ট অফ মন্টে ক্রিস্টো", has been widely popular in Bangladesh and West Bengal, India. The translation, done by renowned Bengali translator and writer, Sri Arabinda Mukherjee, has been praised for its faithfulness to the original text and its engaging narrative style. The Count Of Monte Cristo Bengali Pdf