Anything above 570 stand a chance.Seats are very less in etc department(15) for general and there are 5 sub departments, each carrying 3 seats.They are microwave,communication,control,electron devices and computer engineering(don't confuse with cs department that's different)So microwave was the most preferred branch and cutoff was 623(first round 630 and only one guy didn't took and was then set at 623 )next was electron devices and communication 622(first list but all took admission  and no seat was vacant after first round)then control 570 I guess(went for three to four rounds) and computer was around 565.