For Jain Prakrit, there are very few (almost none) standard “Bengali medium” grammar books specifically focused on Jain Prakrit. Most traditional Prakrit–Jain texts are taught through:

• Original Prakrit (Ardhamāgadhī / Shaurasenī)
• With explanations in Hindi / Gujarati / Kannada / English
• Under guidance of a Jain guru or pathshala teacher

So, if you are looking for:

1. Jain Prakrit (for scriptures, sutras, stotras)

Then: - First learn basic Prakrit used in Jain texts (not necessarily via Bengali, but you can think in Bengali while studying). - Use simple introductory material on Prakrit used in Jainism (Ardhamāgadhī and Shaurasenī), and then connect meanings in your own language.

A helpful starting overview of Prakrit study material for Jain scriptures is given here: You can read more here

1. How to proceed if you know Bengali only

Practical path: - Learn basic Devanagari (if you don’t already); most Jain Prakrit books use it. - Start with simple Prakrit sutras/stotras (Namokar, Logassa, etc.) and get: - line-by-line Prakrit → simple Hindi/English meaning - then mentally convert that meaning to Bengali yourself. - Focus on: - Common Prakrit words (jīva, puṇya, pāpa, kammā, arahant, siddha, etc.) - Simple grammar patterns, not full scholarly grammar at first.

1. Jain Prakrit + Grammar (not language-specific)

For basic Jain Prakrit learning (not Bengali-based, but useful for all): - Overview of Prakrit in Jain scriptures (which dialects, how used): You can read more here - General explanation about language of sutras/stotras (Prakrit + Sanskrit): You can read more here

Summary:

• Dedicated “Bengali–Prakrit Jain grammar books” are practically not available in standard Jain tradition.
• Best way: learn Jain Prakrit through Devanagari, with simple Hindi/English explanations, and then think/translate into Bengali for your own understanding.
• Start from basic sutras and simple Prakrit study notes rather than searching for a full Bengali grammar book.