please suggest way to get infinia from Regalia

Seems they offer it based on TRV.  I too have regalia ltf since 3 years.

U need like 36l itr and 8l plus limit to even 

Get in eligibility so forget about it for now + it invte only that mean I need to have lot of trv with hdfc to get recommendations from branch manager

How about searching the forum first. There are couple of card specific forums as well which have tons of threads on this topic.

You need minimum 10L limit of existing hdfc card and total 8L spends in last 6 months. If you have this, then you can contact infinia cc and ask them for a paid card invite.

Next, in recent times, they're hardly offering on basis of this path. They're asking to buy ULIPs with atleast 1-1.5L yearly premium for Infinia.

And regarding income based application, it can be considered if your spends are not 8L. In that case, you need 5L salary credit monthly or 60L ctc or 60L ITR.

Regarding DCB, you need 5L limit on existing DCP. If you have that, mail them for a paid card invite provided you have 2.5L monthly salary credit (after taxes) or 30L ITR.