Amazon India has claimed the OnePlus 6T as an exclusive product. It has a teaser page with a "Coming soon" label and the option to sign up for updates. This means that the official unveiling is getting closer (based on the screenshot shared by OnePlus we think this will happen on October 17). And as if to rub it in, Amazon also has a teaser for the new Bullets V2 headphones with USB-C. Again with no launch date. The OnePlus 6 took less than a month from being listed on Amazon (April 23) to getting officially unveiled (May 16), which more or less aligns with the October 17...
Source: https://www.gsmarena.com/oneplus_6t_will_be_exclusive_to_amazon_india-news-33347.php