:confused:due point temperature greater than room temperature is possible or not?

Yes

Please tell an example for that category

Given the absolute humdity in the air, the "dew point" (not "due point") is the temperature at which the relative humidity of the atmosphere would be 100%. The dew point is always less than or equal to the current temperature. For example, if the air outside is at 35 degrees C and the relative humidity is at 60%, the dew point is about 27 C. Meaning if the temp suddenly dropped to 27 C it would start raining, since the RH would then be 100%. If you are running your air conditioning in your house and keeping the temp at around 25 C, the dew point is higher than your room temp, and you would likely see condensation forming on the outside of your windows.