How to treat this plant and what is the name of this plant

Hi Rituhpatel. It seems to be like Potassium Deficiency . Click on green link for checking symptoms and taking control measures from Plantix library. Also need to apply good amount of Farm Yard manure or Vermicompost once in 6 months to get good growth of your plant. Don't do overwatering and direct watering on plant. Even don't allow soil to become water logged. Make a hole below the pot to drain out excessive water from the pot. Try well.