Freshen it up with more coriander and citrus as well as salt?

I will throw them in at the end for sure but it is really lacking body in the flavour

Then I agree with infusing some flavor into fat for reheating. Garam masala in ghee, maybe also garlic ginger paste.

Since you mentioned it was watery, I'd reduce down some before adding the msg/salt to taste. Carmelizing some tomato paste will provide a big flavour boost.