Oxford Bookstore, which is located in Leela Galleria (in Leela Palace on Airport Road) is in the middle of its annual sale. I don’t know when it started but I’m reasonably sure that it’s on till the end of March. Call and confirm if you’d like to be sure.
I went there last week and I got a couple of decent deals, so it’s worth checking out. It’s not a Strand-like sale but it’s not bad.