It was just 1 hr or hardly +15-20 mins.
The day I went to ynk was quite busy due to Short Originating Kondaveedu, YNK - KCG,SMVB VB, YPR VB,Vivek Express and LKO YPR EXP. the rf session was unplanned one and we had half day from clg bcuz my friends wanted to see Vande Bharat.