The synogogue is in Fort Kochi, famous for its spice traders. 
I ended up in some place which looked as though Laboratoire Garnier had decided to trade spice
but prices were perfectly reasonable. Prepacked and loose. 
I can make out Mace, cassia and star anise here.
Green cardamom, turmeric, star anise. Dried ginger, clove (?), cinnamon. 
This is a mixture of Ayurvedic medicinal herbs. Add coconut oil to infuse, and you can then rub it in your scalp for those with grey or thinning hair. Different preparations for different complaints. @sartoric
were you asking about something similar when you did your blog in India?
I bought a few herbs and spices of varying difficulty to obtain in the UK, including this:
Kudam puli, or pot tamarind, a souring agent for Keralan fish curries.
