Hi, as I mentioned earlier, I currently ride a TVS Jupiter and commute to the office daily, with 50% open roads and 50% bumper-to-bumper traffic. I am 5.6' tall and looking for a bike with modern looks and good mileage between 35 to 40 kmpl. Can I consider the Suzuki V-Strom 250?

You can definitely consider the Suzuki V-Strom SX, but considering your build, something lighter, lower and more manageable will make more sense. The Gixxer 250 sporty naked is a good alternative, considering you're already inclined toward the V-Strom, and it will be a reliable, comfortable and fuel-efficient machine.