Need some recommendations on food and sweets..

So guys I'm visiting kolkata soon. Im a foodie so need some recommendations on food what should I try, first thing is I'm definitely trying dada boudi Biryani. Other than that what should I try and also can you guys tell me a good sweet shop so I can takeway some sweets for my family.( Local sweets would be awesome) . Also I'm going dada boudi so food recommendation near that place would be awesome. ❤️