There is no definitive answer to this question since there is no official source for downloading 26QB Acknowledgement. However, there are a few things that you can try in order to get your hands on a copy of this document.
First, you can try searching for it on the internet. There are a number of websites that claim to have 26QB Acknowledgement available for download, but it is important to be aware that many of these websites are untrustworthy and may contain malware. If you do decide to search for 26QB Acknowledgement online, be sure to only download it from a reputable website.
Another option is to contact the Indian Income Tax Department directly and inquire about obtaining a copy of 26QB Acknowledgement. The department should be able to provide you with the document, either through their website or by mailing it to you.
Lastly, you could try asking for a copy of 26QB Acknowledgement from someone who has already filed their income tax return. They may have a copy of the document that they would be able to share with you.
While there is no guarantee that any of these methods will work, they are worth a try if you are hoping to obtain a copy of 26QB Acknowledgement.