If Lata’s ‘Allah, Karam Karna’ and ‘Allah Reham” are popular among the Muslims, two of the Indian cinema’s best bhakti (devotional) songs, “Allah Tero Naam Ishwar Tero Naam” and “Prabhu Tero Naam” are sung six decades after she rendered them in Hum Dono, writes Mahendra Ved for South Asia Monitor