India looked like a side who just gave up.
And it's hard to blame them. Ishant and PK have been bowled into the ground, this was their fifth test in 6 weeks. PK's bowling no faster than MSD did and Ishant's bowling action is giving up on him and he was spraying almost everything down leg at the second innings in Trent Bridge. They tried but they had nothing left in the tank to give.
And then Harbhajan just failed to show up. Sure the pitch had nothing in it for spinners, but he's played nearly 100 Test matches, if you can't get wickets then atleast you could keep the runs down? He bowled tripe at Lords when the team needed him, and then went off injured (though still fit enough to bash 46 runs) after bowling 9 useless overs leaving India another bowler short.
Sreesanth...had both his good and bad days in the same match. And despite how good his good days are, you feel it's just not worth it for when Sree loses his rhythm. He has no control, it seems like he either clicks or he doesn't. And when he doesn't, it leaves the side another bowler short, because he bleeds so many runs.
Bowling and fielding with such a toothless attack...India never stood a chance. Their have been moments and spells of brilliance but they have been sustained since the bowlers don't have the fitness or skill required, and when they weren't bowling fire they were leaking runs all over the place. Fielding's been dreadful, most of the side is either old or exhausted. VVS, Dravid, Sachin old and PK, Ishant, Raina, Bhajji, MSD exhausted. Yuvi's been alright, Sree's been awful in the field and Mukund not so good either.
But what's worse is that they just seem mentally fatigued. Raina, Harbhajan, PK, Ishant and MSD have played the World Cup, IPL and West Indies tour. You could sense they've just given up, they're too tired. MSD sets defensive fields rapidly, Ishant's bowling loses bite quickly, Bhajji's been garbage, Raina's still in IPL mode. PK has bowled his heart out, but the fact is when the ball isn't swinging he's far less of a threat.
Mukund, Yuvraj and Raina have been worked over and exposed. They don't have the skill. And going by how they played, they don't have the temperament either. For Mukund maybe it's a matter of time, but surely Yuvraj and Raina shouldn't be persisted with for much longer? Pujara, Kohli are better prospects, and the likes of Rayudu, Pandey, Manoj Tiwary all deserve a shot too.
It's just overall bad planning and preparation from the BCCI. Zak came in slightly undercooked, the whole side didn't have enough time to adjust to the conditions, Sehwag played the IPL in pain instead of getting surgery right after the World Cup to ensure he'd be available for this whole tour. Praveen and Ishant are going to break down if we keep bowling them at this rate, and picking Raina and Yuvraj for a tour in conditions where there will be bounce and swing over someone like Kohli was not smart. It was unfortunate Pujara got injured, otherwise we might have seen him here.
Having bitched about all that though, England were amazing. Such amazing bowling attack they've got here, and with a batting lineup almost completely in form, it's remarkable. Cook and Strauss have done next to nothing yet Bell, Trott, KP and Prior have made up for it. Heck even Morgan's been useless but Broad and now Bresnan have been in the runs too. India just seem deflated about 60 overs bowling into each innings, and without Harbhajan doing anything, seem to have no idea what to do with the old ball (as angryangy said), which is what England's lower-middle order has cashed in.
England are far from unbeatable, 3 batsmen in the top 7 not getting runs and a bit shabby in the slips, but despite that they have wayyy outclassed India. Dravid and VVS have batted extremely well but have gotten some deliveries just too good for even them, while Sachin really should be picking his shots better than he has so far.
And about MSD's batting...he's never had the technique for such conditions, but what he lacked in that he made up for in grit and temperament. Those seem to have deserted him. And he's not coming out for the press conferences. He just seems a tired, defeated man. He seems like he's given up. And I don't blame him. The poor man needs a break after all the cricket he's been playing.
But congrats to England. They are starting to look like Australia of old... ofcourse consistency is needed. I think Morgan's place is safe for the next test. I would go ahead with Bresnan. Let Tremlett cool his heals. 
