Put all the ingredients for the aromatic potli in a piece of muslin (cheesecloth) and tie together with string (twine) to make a pouch.
Bring a pan of water to the boil.
Then carefully add the colocasis pieces and the potli and boil until the colocasia is soft.
Drain, discarding the potli, and allow to cool.
Once the colocasia is cool, peel off the skin, return to the pan and mash until smooth.
Put the mashed colocasia, pomegranate seeds, paneer, khoya, fenugreek, ginger, mint, and chillies in a large bowl.
Season with salt and add all the ingredients for the masala.
Mix well and mash with a potato masher.
Divide the mixture into 12 equal portions and roll into balls.
Heat a charcoal grill or preheat a grill (broiler) to medium.
Using damp hands, spread the balls along the length of metal skewers, flattening the mixture into a sausage shape until the kebabs are 10cm / 4 inches long.
You can make 2 kebabs along the length of 1 long skewer.
Roast the kebabs over the charcoal grill or under the grill for 3-4 minutes, or until golden