Before this ubiquitous logo took its current form, many design variations like the ones below were tried. Which logo are we talking about?

1. 2.

Hint: These are just parts of the whole logo(as though it is not obvious enough)..

Cracked by: Ajay Parasuram , Kamal Rathi , srikar , Atul Mathew , anirvan , Rohan , Achilles , shenoyvarun86 , anirudh , Dibyo , Priya , rajeshvj , Debasish , Nakul , varuns88 , Ananth , Anu , sidsen , udupendra , teju.

Ajay Parasuram, Kamal Rathi, srikar, Atul Mathew, anirvan, Rohan, Achilles, shenoyvarun86, anirudh, Dibyo, Priya, rajeshvj, Debasish, Nakul, varuns88, Ananth, Anu, sidsen, udupendra and teju