I whanau a Sonu Nigam i te 30 o Hōngongoi 1973 ki Agam Kumar Nigam me Shobha Nigam, i te taone o Faridabad, Haryana. No Agra tona papa, no Garhwal tona whaea. Ko tana tuahine Teesha Nigam he kaiwaiata ngaio hoki.I tiimata a Nigam i tana mahi waiata i te wha o ona tau, i te wa i uru atu ai ia ki tona papa Agam Kumar Nigam ki te atamira ki te waiata a Mohammed Rafi Tera "Kya Hua Wada".I tiimata a Nigam ki te haere tahi me tana papa i ana whakaaturanga waiata i nga marena me nga huihuinga.I neke ia ki Mumbai me tana papa ki te tiimata i tana mahi waiata i Bollywood i te 18 o ona tau.I whakangungu ia e te kaiwaiata Hindustani o Ulamhu Mustafa Khan.I marenatia a Nigam ki a Mishra Madhur i te 15 o Pepuere 2002.He tama tana i tapaina ko Neema.
Ko te 18