A Mirage-2000 crashed years ago during Republic day parade and sadly the pilot died in the crash. That's why no single engine. Tejas demonstration in 2017 was very fast.
Abhijeet Iyer Mitra in a podcast said that " Tejas mk1A is inferior to Jf-17 block 1". He himself is contradicting his own points that, Chinese jets are way behind Western and Russian counterparts.