A friend of mine told me about Panch Puran Masala. I googled up on it and came to learn that it is a heady mixture of aromatic Indian spices which is used in Bengali cooking. You can check the Wikipedia link here
As the link states, I have reduced the amount of Fenugreek Seeds because I don't like the bitter taste. Instead, I added Caraway Seeds (Ajwain/Omum/Ayamodagam) because I like the distinct flavor it imparts.
Panch Puran Seasoning – 1-2 tsp
(Panch
Puran Seasoning is a mix of equal measure of 5 items. You can mix it and store
it in an air tight container.)
1 tbsp. Mustard Seed
1 tbsp. Cumin Seeds (Jeera)
1 tbsp. Fennel Seeds (Perunjeeragam)
1 tbsp. Nigella Seeds (Kallonjee/ Kala Jeera)
½ tbsp Fenugreek Seeds (Methi/ Vendyam/ Uluva)
½ tbsp. Caraway Seeds (Ajwain /Omam/Ayamodagam)
(I found that using 1 tbsp of Methi makes it very bitter and not to my liking, so I used ½ tbsp Methi/Fenugreek/Uluva and ½ tbsp. Caraway Seeds)