Given, on Monday, Suhag told his friend that he would start for Mysore day after tomorrow i.e., on Wednesday.
Again he will reach Mysore the day before the day that comes after the day after tomorrow.
Now, Tomorrow is Thursday and day after tomorrow is Friday.
So, he will reach Mysore the day before the day means he will reach the day before the Friday i.e., on Wednesday.
Hence, he start and reach the Mysore on the same day i.e., Wednesday.