ADIT Karmasad or AD Patel Institute of Technology is a premier engineering college in Gujarat, affiliated to Gujarat Technological University, approved by AICTE and Government of Gujarat. Faculty is good and the college has a nice learning atmosphere, with good facilities and infrastructure. Placements are not bad, with companies like TCS, L&T hiring, with about 70% students getting placed.

Devang Patel Institute of Advanved Technology is another top engineering college in Gujarat and it is affiliated to Charusat University of Science and Technology, Anand and approved by the All India Council for Technical Education (AICTE), New Delhi. Faculty is well qualified and campus life is good with nice college events. Placements are decent, with an 80% record with companies like IBM, Samsung, Wipro visiting campus for placements.

Overall, both colleges are good and you may choose Dev Patel Institute of Technology as it has a much better reputation

Hope it helps.