MIT ART is a good college in chennai ,it takes admission through TNEA. its cut off is around 198 to get admission in aerospace b.tech.you can also check previous year cut off link is here
http://www.engineering.careers360.com/colleges/madras-institute-of-technology-chennai/cutoff .
Candidates can check B.Tech Cut off for Top IITs & NITs here.
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