The former Hoops striker scored twice in the second half, once from the spot, as Walter Smith's side extended their winning run in the SPL to nine games while ending the 100% record of their rivals.

The champions went three points clear of the Hoops at the top and Miller, who has scored seven times in 11 Old Firm games since returning for a second spell at Ibrox in 2008, said: "The team is delighted after coming to Parkhead and getting the win to make it nine wins out of nine.

"We wanted to leave with our record intact and we have done that so we are happy.

"If that affects them in a negative way then that can only be good for us.

"We move on to next week and we hope it will continue a bit longer."

The Scotland international added: "You get yourselves right up for these game, these are the games players look forward to.

"And I have been fortunate to put my chances away.

"With the first goal it was a mix-up with a couple of their lads and I was fortunate enough to put it away and obviously you hope you can put the penalty away."

Gary Hooper's opener just on the break was cancelled out three minutes into the second half when Hoops defender Glenn Loovens put through his own net.

Miller then put the visitors ahead with a volley in the 55th minute before netting from the spot 10 minutes later after Old Firm debut referee Willie Collum had pointed to the spot after Daniel Majstorovic had fouled Light Blues substitute Kirk Broadfoot inside the box.

It is the fifth time this season that Rangers have come from behind to win but Miller admitted that boss Smith would like his side to make things easier for themselves.

He said: "We keep going 1-0 down or 2-0 down and the manager is not too happy about that.

"Obviously it was disappointing to lose the goal just before half-time but like last week (against Motherwell) we came out firing in the second half and got three goals pretty quickly.

"I don't know about feeling invincible but there is a belief and a togetherness about the squad.

"When we go 1-0 down, we know we will create chances and if we take them then we know we will get back into it.

"If we had taken a bit more care with the final ball we could have scored a few more at the end."

Miller, whose contract runs out at the end of the season, was coy about the subject, saying: "I think Martin Bain (Rangers chief executive) explained it well the other day.

"There are talks on-going but not every other day or ever other week.

"It will get sorted out one way or the other at the end of the day but I just want to concentrate on the football and bring the title back to Ibrox first and foremost and win a few cups. That would be great."