With Maruti, Bharti, HUL and Idea all beating the Street, the mood in corporate India, if not actually, upbeat, is certainly better than it was a few months ago. There is, however, some despondency that goes with the realisation that the core of the economy remains in deep trouble; from Larsen &Toubro to NTPC and Ultratech to Sesa Sterlite, large chunks of industry continue to find the going tough.