CD4 and tuberculosis: the number of HIV cases “newly” diagnosed and the number eligible for antiretroviral therapy (ART eligibility was assessed using WHO-2013 ART guidelines [all TB patients irrespective of CD4 count and for presumptive TB patients without TB, a CD4 count <500/mm3 was considered ART eligible] in line with the recent decision of national AIDS control organisation in India) [15, 16]