We are looking into this issue.
The file you that have shared in Google Drive seems to be the scanned PDF.
Please also refer this help document: Text is garbled in converted file | ExportPDF
Converting from PDF to Word, Excel or any other format is one of the most complex things you can try to do with a PDF file. It works very well in some cases, in other cases the output has very little to do with the original file. The key for success is that the PDF file needs to be "tagged" - which means that it contains information about the information that is displayed in the file. The best way to make sure that a PDF file is tagged correctly is by using the PDFMaker in Acrobat to create the PDF file from Word or Excel (that's the Acrobat ribbon or toolbar).
Unfortunately there is not much you can do to improve the output without spending a lot of time (e.g. by manually tagging the file). Also, if you are using Adobe's ExportPDF service and don't have access to Acrobat, that is not even an option.
The only thing you can do is complain to the original author of the file and tell them that they used a bad PDF generator to create the PDF file.
Sometimes it helps to save the PDF file as a set of high resolution (e.g. 600dpi) images, then import these images back into Acrobat, run OCR and then export to Word or Excel again.
I replied by email, so did not see that Meenakshi already did add a reply regarding the nature of your document. Let me add a few more thoughts: Not only is this a scanned document, but it's also a scan of a document using a script font. These are exceptionally hard to recognize. It's also not the best scan quality:
As you can see, the text is pixelated, and has "smudges" which all make the OCR job a lot less reliable. I even ran your file through a dedicated OCR application (Abbyy FineReader), and not even that was able to produce any useable output. FineReader is my go-to application if I get to the limits of what Acrobat's OCR can do.
Chances are that - unless you can find an OCR application that supports the specific font that is used in your document - you will not be able to export this document to Word.
I have understood the problem. And informing the scanning dept. to scanned it through a good software.
Thanks a lot.