Some time back govt announced 3 layer structure --Unbundling of Different Layers
thus bsnl can become 2nd layer Network provider-licenses holder, and spectrum management PSU
and third layer =Service provider licenses to Any(mostly Tata) as VNO . to manage competitiveness with tariff and customer service including sim sale, marketing etc.
first layer are IP1-infrastuture provider companies where bsnl can hive off all tower to separate public /private ltd companies along with passive infrastructure and fibers
tata can become front face , because 4g+5g network will be fully managed(core+radio) by tata group companies and
Importantly bsnl cant shutdown 2g,
govt can exit VI for 33% equity vi, bsnl provide excellent exit path ,vi can sell off 2g to bsnl
by demerging vi's 2g network +2g subscribers by selling it to tata
thus Tata bsnl ( new face) can archives 200million soon
Thus remain out of purview of Privatization ,which BSNL employee union fears of.
dont forget that govt plan of privatization have telecommunications as strategic sector with 1 PSU