Shami and Ashwin star on final day as India beat Bangladesh by an innings and 130 runs.
Mayank Agarwal breaks plethora of records with his second Test double hundred.
Bangladesh were bowled out for 150, before India ended the day on 86/1.
The pacer registered the best T20I figures - 6 for 7 - as India sealed a 30-run win to take series 2-1.
Rohit Sharma smashed 85 off 43 deliveries as India beat Bangladesh by eight wickets in the second T20I on Thursday.
Alate blitz from Mushfiqur Rahim saw Bangladesh take victory over India by seven wickets and go 1-0 up in the three-match series.