Actually it does. Let me point you towards them in the very document.The new document also doesn't explain what is the thresh hold either, whether India would take a hit and then retaliate or just deploying the N tip till launch would be considered as strike.
There is no formal definition to it. It's for various reasons under speculation. Even Menon had once made wrong declaration due to typographical error but the formal definition is still unclear. Which gives India a benefit of doubt to retaliate when the adversary has begin the process for nuclear strike.
5
3.2
India’s nuclear doctrine derives from the Constitution of India. The
executive powers of the Indian Union are vested in the Prime Minister, who
is the designated launch authority.
3.3
The Prime Minister (and his designated successors) shall exercise command
and control over India’s nuclear forces.
4.
THE DETERRENT
4.1
India shall maintain a credible minimal deterrent, where credibility
comprises three specific components
-
leadership credibility, force
credibility, and technological credibility.
4.2
The Strategic Forces Command (SFC) shall advise the Prime Minister on the
qualitative and quantitative aspects of credible minimal deterrence, which
shall have to be determined by him/her from time to time.
4.3
In adherence to a policy of no first use, India will not initiate a nuclear strike.
Now look at the underlined part. It clearly states that this formulation has been prepared and suggested to overcome the constraints which are there in NFU policy.NO FIRST USE
Art 4.3: In adherence to its policy of no first use, India will not initiate a nuclear strike.
‘Initiation’ covers the process leading up to the actual use of a nuclear weapon by an adversary.
This would include mating component systems and deploying warheads with the intet This will
enable the Prime Minister to gain the flexibility to decide upon an appropriate response.
This formulation also avoids the constraints placed on the NFU policy in regard to using the nu-
clear deterrent against WMDs adopted in the 2003 CCS decision.
Moreover it has been discussed in some strategic talk shows too in LSTV.