sir there is absolutely no problem. Little smoke on startup is very much normal. It's actually condensation on the silencer that evaporates as car starts up and silencer heats up. no problem with that. # ghabrana nahi hai : )
jab smoke kafi der tak ata rahay, like start karnay k baad bhi kafi der tak, aor even chaltay chaltay bhi, tab kharabi hoti hai...
startup per thora sa smoke normal hai.