What are my options traveling abroad coverage/phone/cost wise in India. Mostly Dehli. 10-14 days.

Vodafone & Orange who I'm currently with are hugely expensive and data wise it's ridiculous.

Is there a sim that allows calls and data roaming worldwide that anyone can recommend? I've looked at a few forums that say its difficult to get a local PAYG sim in india with some new restrictions after the Mumbai attacks... Anyone tried it this way?

Unlocked iPhone 4s & iPad 2

There is Truphone, but I've just looked at the India rates and they're £6 per MB, so probably no better than what you have.

Make sure your phone is unlocked and buy a payg sim out there, they have lots to choose from and the prices are cheaper than anything you'll take from the UK.

Try http://www.indiamike.com/india/
You may also like to get a USB battery pack type thing.. If you plan to use the data for maps.... http://www.amazon.co.uk/New-Trent-Du...369226&sr=8-10

If your using a contract sim in your unlocked iphone, take it out, and repalce it with a UK pay as you go one before you go, i think vodafone offer a UK pay as you go sim that charges £2.50 for up to 25mb of data per day in Europe, and £5.00 for the same amount elsewhere.
As the iphone uses a micro sim, it may also be worth while investing in a sim card cutter, and a sim card adaptor, then you can use your current sim card in a normal non smart phone, if you need to stay in touch via voice/text.
when you get to your destination, you can then use any local pay as you go sim card, with the sim card trimmer/cutter that will then allow you to put that sim in your micro sim slot.

Best option is to get a local sim while you're there. Data is comparatively cheap.