I have n't came across such a long process even in other companies. total 13 hrs i were in office for just a for sake aptitude test and ppt preparation don't know why they are keeping those rounds for experienced hires.Keeping the candidates idle for more than 6 hours. I have entered around 11:00 am and came out at 9::00 pm. Instead keep a telephonic/skype interview don't waste the candidates time