Guidelines issued by Ministry of Home Affairs are quite detailed one & with lots of clarity.
Guidelines by Ministry of Home Affairs
Please note that States and/or Union Territories can make them stringent but not relaxed and are also dependent upon the COVID 19 risk that would be assessed and administered by State and District Administration. They elaborate on scope of services permitted to be initiated and also conditions essential to be maintained in Public Places and for operation of public and private institutions.
Annexure I provides National Directives for COVID 19 management at work spaces, public spaces and factory establishments.
Annexure II elaborates on Standard Operating Procedure for Social Distancing for Offices, Workplace, Factories and Establishments.
Annexure III elaborates on Offences and Penalties for the violation of Lockdown.