What Sustained Sir Ray Gial?

Gial is one of the greatest film makers from india, was first noticed by americans. E became what you know, but estn popular in india. He never made massalofims - that was not his style at all. But there is an economics at work in bengal peciilly where independent films can become commercially viable. That's how he was able to sustain such a prolific career and have this whole career.