^^
Oh in that case I had seen a model from LG, 22L for around 8.5k and IFB 20L or so for around 7.5k I guess, both are with grill and convection.
For non veg food, I'm not sure but if you're looking to brown the food like in tandoori then you do need the grill at least. Convection as far as I understand is an advanced type of grill, with fans inside to circulate the heat evenly across the food. Apparently you need grill or convection to cook paneer also.
If you're going to need those to be cooked, then better go for convection since you have the budget already. Else for half the price you can get a microwave alone.