Tested and working python function to split Bengali Paragraph or Huge text into pieces of maximum characters per paragraph.

 def process_bengali_text(text):

    max_chars = 300

    # Define a set of punctuation marks that can indicate line breaks

    punctuation_marks = ['।', '?', '!', '።', '፧', '፨']  # Add more if necessary

    lines = []

    current_line = ''

    force_split = False

    for char in text:

        if len(current_line) > 290:

            if char == " ":

                current_line += char

                lines.append(current_line.strip())

                current_line = ''

                continue

       

        if char in punctuation_marks:

            # Check if adding the character exceeds the maximum characters

            if len(current_line) + 1 <= max_chars:

                current_line += char

                lines.append(current_line.strip())

                current_line = ''

            else:

                lines.append(current_line.strip())

                current_line = char

        else:

            current_line += char

    # Add the remaining line if it's not empty

    if current_line:

        lines.append(current_line.strip())

    listText = lines

    newList = []

    continue_next = False

    for i in range(0,len(listText)):

        if not listText[i] == "":

            if not i == (len(listText)-1):

                if not continue_next:

                    if len(listText[i] + listText[i+1]) < 300:

                        newList.append(listText[i]+listText[i+1])

                        continue_next = True

                    else:

                        newList.append(listText[i])

                else:

                    continue_next = False

                    continue

            else:

                newList.append(listText[i])

    if len(newList) > 1:

        if newList[len(newList)-1] in newList[len(newList)-2]:

            newList.remove(newList[len(newList)-1])

    return newList