Customer complaint classifier

The brief

A bank's grievance cell reads every complaint by hand to decide its category and team. Build a classifier that sorts complaints into categories like those of the RBI Ombudsman scheme, works for English and Hindi text, and shows which problems are growing. Good looks like: accuracy per category, a check on Hindi complaints, and a trend chart of complaint types.

What you will build

1. Map complaint products and issues to clear categories
2. Train a TF-IDF baseline and a fine-tuned transformer
3. Test on translated or Hindi examples
4. Find the fastest-growing complaint types
5. Present results in a short dashboard

Free, open data to build it with

• Consumer Complaint Database ↗ Consumer Financial Protection Bureau

Check each dataset's licence before you publish your work. Your mentor gives your team its own version of the brief (data, scope or region), so every team's project is its own.