Why Babu not vociferous on Bharat Ratna for NTR? - Did GreatAndhra forgot about PVR?

The answer is quite simple. Telugu Desam president and former chief minister N Chandrababu Naidu does not want his bitter enemy Nandamuri Lakshmi Parvathi to receive the Bharat Ratna on behalf of the late actor.
The Central government's tradition for Bharat Ratna states that in case the award is given posthumously, the spouse of the awardee shall receive the honour. In case Bharat Ratna is given to Rama Rao, naturally Lakshmi Parvathi will be invited to New Delhi by the Rashtrapathi Bhavan to hand over the award and honour.
Lakshmi Parvathi will then hit the national headlines. She will also speak at length exposing Chandrababu Naidu. That explains why Chandrababu Naidu and his Telujgu Desam has been simply passing resolutions every year demanding Bharat Ratna for NTR, but not bringing enough pressure on the Central government to honour the party-founder, who created a history of sorts when he floated the Telugu Desam and won the elections defeating the Congress.
Bahujan Samaj Party leader Mayawati too is demanding Bharat Ratna for Kanshi Ram. She is also not pressing for the award like Chandrababu Naidu. If Kanshi Ram gets the award, his wife will receive it. Mayawati will not.

Source : http://www.greatandhra.com/ganews/viewnews.php?id=5220&cat=&scat=16