I assume you are refering to reward points of Citibank Platinum visa creditcard. I do agree they made the redemtion so complicated. There are too many options to choose and we will end up in confusions - I agree.
I try to help you anyway,
If you want to do physical shoping, I mean you want to touch, feel and try the items before you buy (not online shopping), you can do that at Shopper Stop, Westside or Landmark (does Landmark sell apparals?).
However, there might be more stores available depending on where you live. Follow this link to locate a store near to you - http://www.online.citibank.co.in/portal/newgen/cards/tab/shop-at-a-store.htm
If you are not in a hurry, you can opt for gift-vouchers (referred to as GVs in the link) from citibank http://www.online.citibank.co.in/portal/newgen/cards/tab/rewards-home.htm#citi-catalogue Various options are available here. But it seems there are also very expensive - that is very less amount given back :(
Online Purchase with Citibank Platinum Card (Visa)
If you are okay with online shopping, you can also buy stuff from https://www.rewardsmerchandise.com/ but, it seems, apparals are not available there.
vote up if my answer helped you or hit thumbs down :).