About Dr. Aran Castro A J

The Short Version

I am a geospatial scientist, GIS manager, research consultant, and published author based in Kanyakumari District, Tamil Nadu — the southernmost tip of peninsular India. I hold a PhD in Applied Geology from Annamalai University, and I currently serve as GIS Manager and Research Consultant at Geospatial Campus, operating from my branch in Nagercoil.

I train students, support PhD scholars and professors with geospatial research and publication, and provide consulting services to institutions and organizations across India. I have published two books, multiple journal papers in indexed publications, and have been invited to deliver talks and Faculty Development Programmes at institutions including the University of Madras, IIRS (Indian Institute of Remote Sensing), SRM University, and TRP Engineering College.

The Full Story

I grew up in Patharai, a small village near Colachel in Kanyakumari District. The coast was part of daily life — the fishing boats, the changing shorelines, the stories of erosion that affected families in coastal villages. I didn't know then that this coastline would become the subject of my doctoral research and the foundation of my professional life.

My academic journey began with a Bachelor of Science in Geology from V.O. Chidambaram College, Thoothukudi. Geology gave me a way to read the earth — its formations, its history, its processes. I then pursued a Master of Science in Applied Geology at Annamalai University, Chidambaram, where I deepened my understanding of geological applications and research methodology.

It was during my doctoral research that everything converged. My PhD, also at Annamalai University under the Department of Earth Sciences (a DST-FIST Sponsored Department), focused on the geospatial analysis of coastal geomorphological vulnerability of the Kanyakumari district using GIS and remote sensing. The research required me to study the entire 72-kilometre coastline of my home district — from Arokiyapuram to Neerodi — mapping landforms, detecting land use changes over nearly a decade, analysing shoreline erosion and accretion, and constructing a Coastal Vulnerability Index.

That need led me to Geospatial Campus in Kochi, Kerala, where I received my formal training in geospatial technologies. The connection that began as a student relationship evolved into a professional one. Today, I serve as GIS Manager and Research Consultant at Geospatial Campus, and I have established and operate a branch in my home city of Nagercoil.

My doctoral research produced two published journal papers — one on the delineation of coastal geomorphology and another on LULC change mapping of the Kanyakumari coast. The findings revealed significant truths about my home district: rapid urbanisation was consuming beachface landforms and cultivable land, coastal erosion was dominating the western shoreline, placer mining was accelerating sediment loss, and fishing harbour structures were disrupting natural littoral drift. The Coastal Vulnerability Index identified Midalam as the most vulnerable coastal area.

Since completing my PhD, I have expanded my work far beyond coastal studies. PhD scholars from geology, geography, environmental science, urban planning, civil engineering, agriculture, and marine science regularly seek my geospatial analysis and publication support. But I have also worked with researchers from fields most people would not associate with GIS — historical studies, linguistics, and even nano-physics.

In 2024, I published my first book — Coastal Geomorphology: Processes, Landforms, and Human Interactions — drawing from my doctoral research to create an accessible resource for students and scholars. In February 2026, I published my second book — Systems Over Software: How Great GIS Researchers Think — which reflects a conviction that has grown stronger through years of teaching: that great geospatial research is not about mastering buttons in software, but about developing clear systems of thinking, research design, and analytical reasoning.

I have been invited to deliver lectures and Faculty Development Programmes at several prominent institutions, including the University of Madras (Department of Applied Geology), the Indian Institute of Remote Sensing (IIRS), SRM University, and TRP Engineering College.

At my Nagercoil branch, I train students in GIS and remote sensing, conduct structured internship programmes, and work closely with PhD scholars and professors who need geospatial support for their research and publications. I currently have a Scopus-indexed publication and approximately six papers under review in various journals.

Beyond Work

My journey has not been only professional. I navigated a personally challenging period that taught me the value of discipline, patience, and consistent inner work. For over four years, I have maintained a daily practice of guided meditation and affirmations using the Insight Timer app. This practice is not peripheral to my professional life — it is the foundation beneath it. The clarity, resilience, and steadiness I bring to my research, teaching, and consulting are inseparable from the discipline I bring to my inner life each morning.

I believe that a researcher's greatest instrument is not software or satellite data — it is a clear, calm, and disciplined mind. I try to bring that belief into everything I do.

I am married since April 2024, and I continue to live and work from Kanyakumari District — the same coast I studied, the same soil I grew up on. There is something meaningful about building a career rooted in the place you come from.

Academic Credentials

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