Why is Ashok always against Raman and his family????

One thing I have always wondered and question me is that Why is Ashok always against Raman??? Is it only because raman was married to his ex years back and he was jealous of it?? Agree it... but now he has no ex with him.. but still against raman??? Or is it because of Raman business growth??? If business revenge...then it should be purely business revenge..but here we see that ashok taking on and using every bhalla members...The revenge is not healthy here...😒