As you asked in your question that I want to save so if you want to save then FD will be good option for you because saving and investing are not same. If you want to invest for 3 to 4 years then you can go with liquid funds which comes with risks involved in it so plan accordingly.Hi I use credit cards for almost every expense and after clearing all bills what left from my salary i want to save the rest ammount so what should be best shoet term FD or Liquid Fund Ps- i invest regularly so investing and expenditure is counted and else is the left ammount.