Steven Finn gave England significant cause for concern as he limped out of the attack with a thigh injury on a vexing first day of their India tour.
Finn, a key component in England's likely Test line-up here, exited proceedings this morning and is expected to have a scan to identify the source of discomfort in his right leg.
The 6ft 7in seamer aborted the second over of his second spell - a setback which overshadowed Kevin Pietersen's return to the team, though hardly in the way England would have wished.
Alastair Cook's initial experience on his first tour as permanent Test captain turned out to be an awkward one all round as seventh-wicket pair Manoj Tiwary (93) and Irfan Pathan augmented the gains of Abhinav Mukund (73) and Yuvraj Singh (59) in India A's 369 for nine in this three-day match at the Brabourne Stadium.
Mukund was the dominant, but not always convincing, force throughout the morning session, making 41 of the first 50 runs and numbering 12 fours in his 57-ball half-century after the hosts won the toss.
Yuvraj provided the impetus either side of lunch and then, after England had chipped away to the tune of 190 for six, Tiwary and Pathan shut the door again in a century stand.
The majority of Mukund's early boundaries came off the edge on a pitch of decent pace, but the left-handed opener grew in confidence as England's troubles gathered.
Tim Bresnan (three for 59) had a hand in the first two wickets.
First, replacing Finn after his three overs with the new ball, he was alert, agile and accurate enough - with an under-armed direct-hit - to run out Murali Vijay after Mukund called his partner through for a sharp single dropped into the leg-side.
As James Anderson took a breather and then Finn went off, Bresnan was rewarded for his efforts again when he found alarming extra bounce from barely short of a length to have Ajinkya Rahane edging a simple catch off the shoulder of the bat to gully.
Pietersen, back in an England team for the first time since his summer of discontent and subsequent 'reintegration', did the necessary with a simple catch.