Indian restaurants where a solo diner can try a variety of smaller dishes

I'll be in London for the first time for a few hours during a Friday evening. I'm trying to find an Indian restaurant / food stall where it wouldn't be awkward to eat alone and will have some type of sample set/platter or just smaller portions so that I can try a variety of food. The last time I had Indian food was over 10 years ago. I can only handle a mild spicy level. Does anybody have any recommendations? Thank you!