I think the package in reference above is called the 'Function Package'. It wasn't available when the A3 was initially launched so it would probably be missing in Mr. Umer's car seen in this thread. This package priced at Rs.100,000 is totally worth having in my opinion. It includes the following,
1) Rear Armrest
2) Aluminum Interior Look (this is the best option, it adds Matt-finished aluminum borders to almost all the buttons and AC vents)
3) 3D Luv Inlays (sort of silver carbon fiber look door inlay and dash inlay)
4) Mobile phone/key holder
Other than this package, if one can afford, Panoramic sunroof (Rs.300,000) and B&O Sound system (Rs.200,000) would be some awesome add-ons. The pano roof would add to the resale value of the car and the sound system for personal pleasure