The 2nd International Conference on Big Data, Machine Learning & their Applications (ICBMA-2021) is proposed to be held in MNNIT Allahabad to promote interdisciplinary research, from July 23-25, 2021. ICBMA is a unique international conference that provides a forum for academics, researchers and practitioners from academia and industries to exchange ideas and share recent developments in the field of Big Data and Machine Learning and their Applications. The conference will provide a platform for researchers to get recognition for their research innovations and provide wider publicity to the Institute as well as industries. ICBMA-2021 focuses on both theory and applications in the broad areas of Big Data and Machine Learning and its Applications in various areas. The conference will provide the opportunities of collaboration with National and International organizations of repute to the research community. It is planned to have activities such as keynote addresses from academic and industry experts, technical sessions involving research paper presentation, tutorials, and workshops.