Mourinho, who won one Primera Division title in three seasons in Spain with Real Madrid, is set to take his Chelsea side across The Channel on Wednesday for the first leg of their Champions League quarter-final.
It should be an intriguing encounter at Parc des Princes and Mourinho has stoked the fires with his French counterpart by suggesting winning Ligue 1 was easy.
Blanc said: "Maybe if we're talking about the league and I'm sure that Jose Mourinho knows the French league very well. There are two really big clubs in Ligue 1 (PSG and Monaco), but if I remember correctly, I think it was the same for him in Spain, with Barcelona and Madrid.
"The only answer we want to give is to show a great performance (on Wednesday) and we'd like to show that Ligue 1 has some very good teams and some very good players."
Big-spending PSG have not hidden their admiration for Chelsea's Eden Hazard and Oscar in the build-up to the contest, while David Luiz has also been linked with a move.
Hazard arrived at Chelsea from Ligue 1 side Lille after the Blues' European Cup triumph in 2012 and has enjoyed a stunning second season in London.
"In France we know Eden really well," added Blanc. "We always thought he was very impressive in a one-vs-one situation and how fast he is on his feet and his movement.
"Since he got to Chelsea he has scored more and more goals, creates many dangerous opportunities and I've also noticed that when Chelsea is in a difficult period of the game, he has the freedom to go everywhere in trying to bring the team up.
"He's still very young, he has a lot of room for development and I foresee a very bright future."
Paris St Germain v Chelsea is live on Sky Sports 1HD on Wednesday, kick-off 7.45pm