First of all, I so wish that the language used would have been more appropriately and consistently used throughout the series. There was absolutely no need to mix it up because honestly speaking, the emotions are mostly lost in translation at different stages as we go along. I think this stems perhaps from the unnecessary need to reach an international audience by using a more widely spoken language, even though the characters are all Indian. In contrast, if you think of the highly popular shows on Netflix such as "Narcos" or "Money Heist", they are clearly testament to the fact that if you make good content, it doesn't matter what the language of communication is. People will watch it with the many means (in this case, subtitles) they have now, thanks to technological advances.
To add to that, the few comedic possibilities have been turned into atrocious caricatures which are dangerously stereotypical of Indians of that era who were well-versed in the English tongue. Same stereotypical use of Bengali songs and dialogues and ridicule of the Bengali characters when they are based in Calcutta, which at that time was much more diverse than whatever is portrayed here.
Also, the portrayal of post-partition India as being a minority-oppressing nation, at least in the scenes where they have always ensured to show the Hindus as the initiators of agitation looked very biased and one-sided. One of the many reasons "Black Friday" is one of the best movies of our time. I understand that this will "sell" very well to the so-called woke fraternity.
Amongst the positives, the set and costume designs are very good and looks well-researched ("O Gore Gore, O Baanke Chhore" was released in 1950 and indeed they play it as a hit number in the year 1951 in the show). The cast is a brilliant one and they have done a fantastic job. The music is a mix of light Indian and Western classical, but the former could have been used much better in my opinion. Taniya Maniktala as Lata Mehra is especially brilliant in her role as an independent woman in a newly independent India, trying to find her own suitable boy while torn between family duty and romance. Unfortunately, many of the societal evils shown here still exist in India and therefore relevant even today. Overall, this could have been a better movie than a series.