HFC is used in lubricants right? Even forum has given a source for this. https://sinopecenergy.com/wp-content/uploads/2015/08/HFC-4631-Water-Glycol-Fire-Resistant-Hydraulic-Fluid.pdf. Pls chk this too. I think answer is all the abouve, though I marked in wrong.
@GaneshGaitonde 2020- 84. Out.
2021- 94. Got 102. Wrote civils and forest mains.
2022- break
2023- 96 attempted. Dint apply for forest. Was getting 94 to 102.
My exp has been going beyond 90 as I did not have accuracy.
So its a personal thing.