Arpita Khan celebrated her birthday bash over the weekend with great fanfare.

But the outfit she wore at her party was similar to what Katrina Kaif has worn for Dabboo Ratnani's 2011 calendar shoot.

The actress features on the desktop almanac for the month of July.

Hope Kat did not hand it down to Sallu's li'l sister after the photo shoot! Or perhaps they both have similar style preferences?