Dattatray Dagale

Free Tools Won't Save You. But These Five Will Change How You Work.

I spent my first year as a data analyst at Morningstar thinking the problem was me. I'd open Excel, stare at a dataset, and feel like I was moving through mud. My dashboards took forever. My analysis was clunky. My insights came late. Then one morning — I remember this clearly, sitting in the local train from Kalyan, packed shoulder-to-shoulder with 200…

3 Times Machine Learning Already Made Decisions About Your Money (Without You Knowing)

Last Tuesday, on my 45-minute local train ride from Kalyan to Dadar, I got rejected for a credit card I didn't even apply for. Let me explain. I was sitting in the 7:15 AM crowd, AirPods in, scrolling through my banking app on my OnePlus. I noticed a notification: "Your pre-approved credit card application has been declined." I hadn't fille…

Python vs Excel: Which Should You Learn First

I spend three hours commuting every day—ninety minutes from Kalyan to Bandra, ninety minutes back. That's where I think. Last month, on the local train, a junior analyst from my team asked me: "Should I learn Python or get better at Excel first?" I didn't answer immediately. Because the honest answer isn't what most people expect. For …

5 AI Tools That Cut My Weekly Work Hours From 40 to 20 (And How to Actually Use Them)

It was 8:47 PM on a Tuesday, and I was still at my desk in Morningstar's Navi Mumbai office. My manager had asked for a comparative analysis of 15 mutual fund schemes — something that would normally take me two full days of cross-referencing spreadsheets, pulling data from multiple sources, and manually formatting tables. I had exactly one evening to finis…

Two Years of Ignoring GitHub Until a ₹5 Lakh Opportunity Made Me Finally Learn It

I used to think GitHub was just for people who coded for a living. Not a thought I'm proud of, but it's honest. Working as a data analyst at Morningstar, I'd built models in Python, written SQL queries, created dashboards in Tableau — all without ever properly understanding version control. My scripts lived in folders on my laptop. When I updated…

Stop Learning Tools You'll Forget. Learn This Instead

I'm going to say something that will probably upset a few data analysts scrolling LinkedIn right now: knowing SQL and Python isn't enough anymore. Neither is Tableau. Neither is anything else you learned from a ₹15,000 online course last year. Here's why I'm saying this in January 2025, sitting in my Morningstar office overlooking the Mumbai s…