XIME University Chennai and Christ university of ghaziabad are one of the top colleges in India.They  have their own features and facilities and merits and demirts .If you get to choose between XIME and christ your decision should be based on your expectations from college that is whether you want a good placement or depth of knowledge.XIME gives the opportunity to learn, explore and apply. Academically it is one of the finest institution in India.But what it lacks is Industries tie ups,and also the placement are not good whereas on the other hand Christ focus more on other activities rather than academics . It provides  lot of extracurricular activities and Internship opportunities. So your decision depends on what you want.