Well, 20 best songs of Lata? Thats a tough one! yet, I will make an attempt and maybe in the process, I might miss out some or give undue credence to some. Anyway, its the best I could do. Maybe this will suffice the need.
AAJ PHIR JEENE KI - GUIDE
AAJKAL PAON ZAMIN PAR - GHAR
AAPKI NAZRON NE SAMJHA - ANPADH
RAJNIGANDHA PHOOL - RAJANIGANDHA
TERI AANKHON - CHIRAG
AJI ROOTH KAR AB KAHAN - ARZOO
UNKO YEH SHIKAYAT HAI - ADALAT
WOH BHOOLI DASTAN - SANJOG
WOH CHUP RAHEN TO - JAHAN ARA
YUN HASRATON KE DAGH - ADALAT
EK THA BACHPAN - AASHIRWAD
JANA THA HAMSE DOOR - ADALAT
VANDE MATARAM - ANANDMATH
E MERE WATAN KE LOGON
O SAJNA BARKHA BAHAR - PARAKH
CHHOD DE SARI DUNIYA - SARASWATI CHNADRA
MERA SAAYA SAATH - MERA SAAYA
SUNIO JI EK ARAJ - LEKIN
KESARIYA BALMA - LEKIN
NEELA AASMAN - SILSILA