The Asus Zenfone Max Pro M1 was unveiled back in April this year as a Flipkart exclusive in India. It comes in three variants: 3GB RAM, 4GB RAM (both with 13MP+5MP back and 8MP front cameras), as well as 6GB RAM model (with 16MP+5MP main and 16MP selfie snappers). While the 3GB and 4GB RAM variants went on sale in May, the 6GB model has remained unavailable all this while. But the variant has been spotted in Flipkart's website. As you can see, the listing isn't up yet, and doesn't reveal the RAM. However, the source code for the page confirms it is indeed the 6GB RAM...
Source: https://www.gsmarena.com/asus_zenfone_max_pro_m1_with_6gb_ram_and16mp_selfie_shooter_spotted_on_flipkart-news-31803.php
