I'm posting this for reference purposes
Spices/herbs scaled down to 1KG of onions (it is assumed that Taz's base uses 1KG of onions but the recipe doesn't specify a weight).
JB'S BASE
0.75 TBSP turmeric
0.25 TBSP cumin powder
0.25 TBSP coriander powder
ZAAL'S BASE (includes an akhni stock not specified below)
0.4 TBSP mix powder
0.5 TBSP turmeric
0.5 TSP chilli powder
SYED'S BASE
2 TBSP mix powder
1 TSP paprika/red chilli powder
1 TBSP kasuri methi
TAZ'S BASE
1 1/2 TBSP turmeric
1 1/2 TBSP coriander seeds
1 1/2 TBSP cumin seeds