"My life has totally changed after I took six wickets because that was best figures by an Indian (in T20I) and third best overall," Chahal told reporters on the eve of RCB's tie against Kolkata Knight Riders (KKR) at the Eden Gardens here.
"So now there is more responsibility for me and pressure. Now I have to do more compared to last year," the 23-year- old tweaker said.
Chahal returned stunning figures of 6/25, the best by an Indian bowler in T20I history, and the third best overall as India won by 75 runs.
Coming to RCB, Chahal said South African star batsman AB de Villiers who did not play the last game due to injury, is fit for the tie on Sunday and could play.
"I think he is ready to play tomorrow. I don't know about (Tymal) Mills."
The addition of Samuel Badree and Pawan Negi, Chahal said, has taken the pressure off him and he can now bowl in the middle overs.
"He (Badree) can bowl in the Powerplay and I can bowl in the middle overs. Then (Pawan) Negi is there. Now we have two spinners who can bowl in Powerplay, last year it was only me who bowled in Powerplay overs," Chahal said.
Chahal said that he liked bowling on flatter wickets like the one on offer at the Eden Gardens which is expected to assist the fast bowlers.
"For me, I love to bowl on flat wickets. I don't like bowling on turning wickets. It is more difficult to beat the batsman, whereas on a flat wicket you can plan when to bowl sliders and googly. For me, I like pace on the wicket."
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