30.3 - The number of overs India needed to bowl Bangladesh out. It's the least number of overs India have bowled to dismiss their opposition in the first innings of a Test. The earlier record was 44.2 overs, against Zimbabwe in Harare in 2005.
4 - Instances of India fast bowlers picking all ten wickets in a Test innings at home. The last was also at Eden Gardens, in the last Test played there against Sri Lanka in 2017. The first two instances were in the 1980s. This was also, in fact, the first time India bowled out their opposition without R Ashwin coming on to bowl.
2 - Number of cheaper five-wicket hauls by India fast bowlers than Ishant Sharma's 5 for 22 in this Test. Jasprit Bumrah's 5 for 7 against West Indies a few months back is the record, followed by Javagal Srinath's 6 for 21 in Ahmedabad in 1996.
1 - Number of lower totals for Bangladesh against India than the 106 in this Test. The only time they got fewer runs was when they were bowled out for 91 in their first ever Test, in Dhaka in 2000.
2007 - The last time Ishant Sharma took a five-wicket haul in a home Test, which was in his first Test at home, and second of his career, against Pakistan in Bengaluru. This is Ishant's 37th home Test and the 96th match of his career.
Bharath Seervi is stats sub-editor at ESPNcricinfo @SeerviBharath