Isl 2019 20 hard work and determination key to prabir das revival this season

I think there may be a few issues with your statement.

Firstly, I'm assuming you're referring to Prabir Das, an Indian professional footballer who plays as a right-back for ATK Mohun Bagan in the Indian Super League (ISL).

Secondly, I'm not aware of any specific "revival" that Prabir Das had in the 2019-20 season. Could you please provide more context or clarify what you mean by "revival"?

Lastly, I'd like to correct a minor error - the 2019-20 season of the Indian Super League (ISL) was actually the 6th season of the league, not 2019-20. The season took place from October 2019 to March 2020.

If you could provide more information or clarify your statement, I'd be happy to help you with your query!