Have come across different interpretation for a company in loneliness and thought of sharing them here –
Bashir Badr / Jagjit Singh
Mohabbat ek khushboo hai hamesha saath chalti hai
Koi insaan tanhaai mein bhi tanha nahi rehta
Javed Akhtar / Amitabh Bachchan
Main aur meri tanhaai aksar yeh baatein karte hain
Tum hoti to kaisa hota, tum yeh kehti, tum vo kehti
Gulzar / Shreya Ghoshal
Tere khayaal mein doob ke aksar
Achchhi lagi tanhaai
Personally, my favourite happens to be the latest one from Gulzar which is very close to the one sung by Jagjit Singh.