Saw this recipe here, luckily I had all the ingredients in hand and tried it immediately  for evening snacks .. we enjoyed it so well and it was so filling ...Made few changes to the original recipe ..

Ingredients needed :

• Sweet Potato - 4
• Paneer grated - 1/2 cup
• Roasted gram dal / Pottukadali  - handful
• Chili powder
• Salt
• Garam Masala powder
• Amchur powder
• Turmeric powder (opt.)
• Onion (to garnish )
• Oil
• Bread crumbs

Method :

Peel the skin off sweet potato , and roughly chop into pieces and in a kadai add water + sweet potato pieces and boil it well and cook it till done ...once done , drain all the water and allow the sweet potato to cool off completely and mash it and keep it ready ..ground the roasted gram dal in to fine powder and keep it aside ...grate the paneer and take it in bowl and to that add salt + chili powder + garam masala powder + turmeric powder + amchur powder + grounded roasted gram dal powder + mashed sweet potato and mix it well to form a dough  ...
 

Now take a small portion of the dough and make like patties and and roll it in bread crumbs and assemble it in a plate and keep it in fridge for 30 mins. or in freezer for less than 10 mins. ...this is done to make the patties slightly firm ...and it will retain it's shape when frying ....after 30 mins. or 10 mins. remove it and heat a tawa and shallow fry these on both the sides till done ...serve it with tamarind - sweet chutney (I used ,  Maggi tamarina sauce )  and garnish it with finely chopped raw onions .