Online · Tech · beginner · machine-learning, competition, kaggle
This free online Kaggle competition challenges participants to build a machine learning model predicting Titanic passenger survival using historical data. It serves as an introductory challenge for beginners to learn predictive modeling and data analysis on the Kaggle platform.
Online · Tech · beginner · kaggle, machine-learning, data-science
An online free competition for Kaggle Learn users to practice machine learning by predicting housing prices using the Ames, Iowa dataset. Participants apply feature engineering and regression techniques like random forest and gradient boosting to minimize RMSE error.
Online · Tech · beginner · kaggle, machine-learning, computer-vision
A free online Kaggle competition challenging participants to classify flower species using machine learning models on TPUs. Targets data enthusiasts and developers practicing computer vision and deep learning techniques via notebook submissions.
Online · Tech · beginner · kaggle, machine-learning, data-science
A free online machine learning competition where participants forecast grocery store sales using time-series data from Corporación Favorita. Targets beginners practicing predictive modeling and data analysis skills on a real-world retail dataset.
Online · Tech · intermediate · machine-learning, nlp, ai
A free online Kaggle competition where participants develop an NLP model to detect contradictions and entailment in multilingual text. Targets developers and data scientists skilled in machine learning, transformers, and notebook submissions.
Online · Tech · beginner · machine-learning, llm, classification
Free online Kaggle competition where participants fine-tune ML models to predict human preferences in LLM chatbot interactions. Targets beginners and data science learners, exercising classification skills using real-world Chatbot Arena data without requiring prior ML experience.
TBA · Tech · intermediate · hackathon, ai, machine-learning
The Bharatiya Antariksh Hackathon 2026 is a free national competition organized by ISRO for Indian students and researchers. Participants solve space-tech challenges using AI and data science for a chance at mentorship and internship opportunities.
New Delhi · Tech · cybersecurity, ctf, web-security
Operation Black Vault is a free cybersecurity Capture The Flag competition for students in New Delhi. Participants solve challenges in web security, cryptography, and forensics to earn points on a live scoreboard.
Online · Tech · intermediate · c-programming, python, aptitude
Online quiz competition for engineering students in India. Tests C Programming, Python, Aptitude, and Logical Reasoning. 20 MCQs in 30 minutes. Free entry with cash prizes and certificates.
Guwahati · Tech · robotics, artificial-intelligence, machine-learning
TechExpo is a national science and engineering project competition at IIT Guwahati during Techniche. Students submit prototypes in areas like AI, robotics, and EVs for expert evaluation and potential incubation.
Online · Tech · intermediate · ctf, cybersecurity, web-security
HackHub's Operation Black Vault is a free cybersecurity CTF competition for students held online from July to August 2026. Participants solve challenges in web security, cryptography, and forensics to qualify for an offline finale at IGDTUW.
Gurgaon · Tech · intermediate · ai, machine-learning, cybersecurity
Hacknite is a free 12-hour hackathon in Gurgaon for students and recent graduates across all disciplines. Teams build projects in tracks like AI, cybersecurity, or blockchain for an offline grand finale with industry mentorship.