Jobs in the informal sector are normally characterised by various sorts of employment-insecurities and vulnerabilities of workers. Manifestations of the precarious state of affairs in these occupations include: less organised workplaces, preponderance of informal work contracts, absence of definite employer-employee relationships, lower wages, extended hours of work, hazardous working conditions, higher levels of work intensity and exploitation, inadequate reach of social security and protective/welfare measures, near absence of worker collectivity and denial of basic labour rights. Accordingly, occupations with most of (or all) the above attributes are usually viewed as part of informal sector, and those with none (or nearly none) of such features are construed as constituents of the formal sector. However, practically, it is difficult to categorise occupations in water-tight compartments of informal and formal sector, as the degree of (in) formality varies considerably across jobs. As explained by the National Commission for Enterprises in the Unorganised Sector (NCEUS), there can be situations of `informal employment in the formal sector’ and those of `formal employment in the informal sector’ (NCEUS, 2009).