Which college has the best CSE department, IIT Mandi, Jodhpur or Patna?

IIT Patna CS is the best option as it is second best among the new IITs, it stands only after iIT Hyderabad and is at par with IIT Indore. To get CSE at IIT Patna, JEE rank of 999 was required in 2018 which explains the improvement of the department over the years. 

Some information regarding rapid growth of IIT Patna: 

1. ButterRoti, a team from IIT Patna qualified 2 years continuously for ICPC World Finals.
2. Students from first year at IIT Patna were selected for GSoC. More than 25 students have been selected in the last 3 years, 14 being in 2018 making IIT Patna 8th best university worldwide in GSoC statistics. 
3. NJACK, a CS club at IIT Patna is quite active. It has its own coding, developments, Linux distro and cyber security departments. 
4. Codechef Chapter organizes various coding competitions in IIT Patna. IIT Patna ranks better at Codeforces as compared to IIT Mandi or IIT Dhanbad. 
5. IIT Patna collabs with many foreign universities and their faculty, like Kyoto University, National University of Singapore, University of Houston, Texas, Louisiana State University, University of Hartford, Connecticut , University of Missouri, Columbia, University of New South Wales, University of North Texas, denton and University of Saskatchewan (Canada) 
6. IIT Patna ranks on 42nd position in CSrankings: Computer Science Rankings in Asia.

Placements - IIT Patna has bagged placements which are comparable to old and top IITs. 

• IIT Patna has a 100% Placement record with an average package of 16.08 LPA. 
• 2019 passouts have been placed in top notch MNCs like Google Warsaw, Poland, Goldman Sachs, Uber, Codenation and many more. 
• Highest package offered is 40 lpa. 
• Students have been selected for internships at Google, Amazon, American Express, IBM, Intel etc. 

IIT Patna is well equipped with respective labs which include a Hardware Lab, Network Security Lab, Advance Lab, AI-NLP-ML (Elsevier / SushruteZDI Sponsored) Lab, AI, MI and Natural Language Processing Lab, Machine Translation (E-IL, IL-E), Cross-Lingual Search, Temporal IR, Sentiment Analysis Lab, Information Extraction, AI and MI for Healthcare, Deep Learning for NLP, Bioinformatics, Text Mining in Biomedical / Biochemical Texts and Clustering.