search local hardware areas... you will get this type of die grinders with lots of extras for 1.5 to 2.5 k(thats the cost of those if i remember in blore), most online hardware stores are more expensive and stupid. i dont know kolkata but in banglore u get similar types.
edit- id still recommend original dremel 300 with 55 extra items and flexishaft , if not atleast use the original dremel accessories. theres a reason why the chinese ones have double the amount of extras, they break double the times. experience