Though it is a nice place, however there is nothing much to buy as a souvenir. You can spend some time in the Lansdowne market or at the Alaknanda market. While in Alaknanda market do pay a visit to the shoe store and leather bags store - may double as souvenir ! Don't forget to try out mithais sweets/desserts called 'Chocolate' not the usual chocolates that you buy in general stores!) and "Baal Mithai" that are popular to this region and available at local sweet shops.