Tyagi, the star of the match against Punjab Kings, drew first blood with his very first delivery in the fourth over, cleaning up Orange Cap holder Shikhar Dhawan (8).
The left-arm pacer currently has 8 wickets in 7 matches of IPL 2021, and refers to his time with the Royals so far as satisfying.
When Australia needed 23 runs in the last two overs, Mustafizur conceded just one run in the penultimate over.
Mustafizur Rahman, Afif Hossain star as Bangladesh defeat Australia in second T20I, take 2-0 series lead
Chasing 122, Bangladesh got off to a bad start as Soumya Sarkar was clean bowled by Mitchell Starc in just the third over of the innings.
The IPL, which was suspended on May 4 after multiple cases of COVID-19 inside its bio-bubble, will resume in the third week of September (likely on September 19) and end in the second week of October.
Yellow Gate Police in south Mumbai have registered an FIR against captain Rakesh Ballav and others on a complaint filed by chief engineer Mustafizur Rahman Hussain Shaikh.
Bangladesh pacer Mustafizur Rahman hoping his off-cutters come good against India in Champions Trophy semis
Mustafizur Rahman is hoping his off-cutters, which are not working in England as much they used to at home.
Mehedi struck in his third over, enticing Kusal Mendis out of his crease before Mushfiqur Rahim completed the stumping.