Where to buy a combo of all singers Ghazal collection in Delhi?

I want to gift someone a collection of best Ghazals by Talat Aziz,
Ghulam Ali, Pankaj Udhas, Jagjit Singh and likes. Would appreciate if
someone can suggest me any MP3 or CD collection that has every come
out by any music company in the past on similar lines. I have seen one
with a collection of songs from Lata, Rafi, Kishore etc. Please help!