First off, the much rumored global unveiling date of January 14. Next up, it looks like sales in India will start on January 29, a week after the global launch. That means we may see availability elsewhere as soon as January 22.
Finally, some details about specs. According to the store, the S21 trio in the subcontinent will be powered by Samsung's own Exynos 2100 chipset, and not the Snapdragon 888. The S21 Ultra is confirmed to have a 108 MP main camera sensor, as well as a pair of 10 MP units, of which one has 10x optical zoom. The store didn't talk about the fourth camera, but according to past leaks it will be a 12 MP ultrawide.
The Galaxy S21 will launch in gray, pink, purple, and white, the S21+ in pink, purple, silver, and black, and the S21 Ultra in black and silver. According to a previous report, pricing in India will stay unchanged from the Galaxy S20 series.
They should find companies that don't give chargers along with their phones. Plastic back is not a bad thing if it is of good quality. Everyone uses a case anyway.