Kaustav is a Helen Hay Whitney Foundation post doctoral fellow in the Anseth Research Group at University of Colorado Boulder. Kaustav also served as a board member and treasurer for the Postdoctoral Association of Colorado Boulder (PAC). 

Kaustav's current research utilizes photo-responsive hydrogels systems, in combination with molecular biology and advanced microscopy, to study our gut architecture and decipher how the cellular composition and function of mammalian intestine is maintained. To model the gut in vitro, we use tissue-like multicellular structures called organoids. Through our research we are hoping to understand the progression of intestinal diseases like inflammatory bowel disease and colorectal cancer.

Prior to joining CU Boulder Kaustav obtained a Ph.D. in Chemical and Biomolecular Engineering from Johns Hopkins University. Kaustav's dissertation research in the Konstantopoulos Lab at the Institue of NanoBio Technology (INBT) investigated how cancer metastasis (spread) is regulated by physical forces within the human body. A highlight of the research has been the discovery that viscosity of fluids surrounding tumor cells can enhance their motility and thus cause them to metastasize more efficiently (Nature 2022).

Kaustav pursued Masters and Bachelors in Bioengineering from Indian Institute of Technology Kharagpur (IIT Kharagpur). Kaustav also completed a minor in Chemical Engineering and a micro-specialization in Biomedical Devices and Instrumentation.

In addition to doctoral and postdoctoral research experiences, Kaustav undertook undergraduate research internships at Case Western Reserve University and University of British Columbia.