IITM - Indraprastha Institute of Technology and Management

IITM - Indraprastha Institute of Technology and Management is a reputed institute for BBA, B.Tech, BCA. Students can opt these programs to pursue their career in Business & Management Studies, Engineering, IT & Software. Institute has trained & experienced faculty who deliver these programs. IITM - Indraprastha Institute of Technology and Management has a review rating of 4.1 on the basis of reviews by students. In addition to this, it has been rated 4 on campuslife, 4.2 on placements, 4.3 on faculty and 4.1 on Infrastructure.

If you are from general category Rank 3-100 and rest is higher only and also You need to get around 900 Gate score to get offer from IIT Delhi through COAP 2020.
If there is any vacant seat till spot round (the chances of which is negligible) then the Score can drop down to around 800.
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https://www.shiksha.com/college-predictor
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No, IITM Janakpuri doesn't ask for mathematics. Only 50% in +2 is required for admission.
If you want to learn programming languages which you will be studying in your BCA course then you can check out this app "BCA - Course Programming" which is specially designed and developed for BCA students and is available on Google Play Store. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA.