India's rusty bowlers ran into an embarrassing spot of bother as Angus Robson proved centuries run in his family.
The Leicestershire opener, whose older brother Sam hit a maiden hundred for England at Headingley seven days ago, made it another weekend to remember for the Robson clan.
This was very much a Saturday to forget, though, for India - and specifically their Test linchpin seamer Ishant Sharma - as Robson (126 retired out) and Greg Smith (101 retired out) dispatched them all round Grace Road in a second-wicket stand of 221 out of 349-5 at stumps, with a draw the outcome.
Replying to India's 333-4 declared in this rain-ravaged first tour match, Robson announced himself with a rush of boundaries - 10 out of 11 in his run-a-ball 50 off Bhuvneshwar Kumar.
After a break because of more bad weather either side of lunch, Robson and Smith then climbed into Ishant - who struggled, especially in his first spell from the Bennett End which read 4-0-41-0 and included six no-balls.
Robson was watched, as his brother was in Leeds last weekend, by father Jim - on holiday with wife Rosamunde from his and his sons' native Sydney, principally to witness at first hand the start of Sam's Test career for his adopted country.
Anything his older brother can do, however, Angus demonstrated he can too - and even though the 22-year-old has yet to make a first-class century, in this match robbed of that status by India's wish to rotate their full squad of 18, he raced to three figures with 20 fours from just 102 balls.
He was prolific through the off side, often behind square, to the extent that Mahendra Singh Dhoni posted an unconventional deep second gully to try to cut off a succession of rasping Robson cuts.
It was to little avail, as was the use of all seven seamers in the Test squad - among whom Pankaj Singh, tall and muscular, was comfortably the pick in pace bowlers' conditions yet ones in which India toiled throughout.
Pankaj began with two successive maidens, by which time Robson already recorded his first boundary off Kumar - edged just short and then past slip from the third ball of the innings.
There were precious few more runs off the edge, although initially Robson did keep Kumar and the off-side catchers interested as the ball moved around under cloudy skies.
His opening partner Matthew Boyce went cheaply, edging Pankaj high to third slip where Ajinkya Rahane took a brilliant one-handed catch above his head.
Smith was a very different matter, in his run-a-ball century completed with successive straight sixes into the sightscreen off Ravindra Jadeja to add to 17 boundaries.
He and Robson - two of just four retained for this fixture from those who played in Leicestershire's 10-wicket defeat at Surrey three days ago - spared no one's reputation as the run rate rattled on at approaching six-an-over.
There was just one more minor blemish in Robson's hundred, edging Mohammed Shami low and perhaps dropping just in front of second slip on 61.
Leicestershire's centurions retired at tea, to allow India comparative respite.
But in a match long destined for an inevitable stalemate, Dan Redfern (58) took over instead. He eventually drove to mid off to give Ishant an overdue wicket, followed two balls later when Tom Wells edged to slip for a duck.
By then Redfern and Michael Thornely had pushed the innings boundary count past 50 fours to go with four sixes.
With or without such damning statistics, there was zero doubt about where the honours unexpectedly lay in this fixture - and none either that India's bowlers will badly need their next run-out, against Derbyshire, before the first Test.