Few 800's feature maruti logo and a few feature suzuki logo; it was all part of the deal;
There were four kinds of engine emboss during various periods: ind-suzuki, TVS Suzuki, Suzuki and TVS, depending on the model;
R&D for engine of Supra, Supra PU, Supra SS, Shogun, Shaolin, Shadow, Racing SS kits, the 19-bhp fuel injection Shogun of auto Expo 98 are done by TVS only and not Suzuki, although I'm not sure about Fiero.