You will get the same pay at EY at Scon level. They don't have bonus in their compensation so I think if you compare the compensation in EY with bonus to what they are offering the hike isn't that much?
Their work life, work culture and set up is just horrible because they follow the offshore model but in most cases you aren't with 1 team or even 1 office for the entire engagement cycle. It's mainly because they aren't established yet properly in this offshore model and as a result you are overworked with no clear role expectations? A friend of mine left EY to go there for a similar reason (pay) and regrets it.
What is your designation currently in EY?