This is an artistic CGI drawing of the S5 class of ballistic missile submarines of India. This drawing is based upon an image of a Hydrodynamic model of a submarine <a rel="nofollow" class="external text" href="https://twitter.com/VPSecretariat/status/1166582964051951616">tweeted</a> by the Vice-President of India on 28 August 2019 after he visited an exhibition at <a class="external text" href="https://en.wikipedia.org/wiki/Naval_Science_and_Technological_Laboratory">Naval Science &amp; Technological Laboratory</a> (NSTL) of <a class="external text" href="https://en.wikipedia.org/wiki/Defence_Research_and_Development_Organisation">DRDO</a>.
<p>The hydrodynamic model clearly represents a ballistic missile submarine. The model doesn't match the current <a class="external text" href="https://en.wikipedia.org/wiki/Arihant-class_submarine">Arihant-class</a> submarines of India. Hence, it is safe and logical to assume that it represents the S5-class of submarines.
</p><p>I am not the only one suggesting this. <a rel="nofollow" class="external text" href="https://www.forbes.com/sites/hisutton/2019/09/08/tweet-may-have-inadvertently-revealed-indias-next-gen-nuclear-weapons-platform-with-global-reach/#9208b1372127">Others have suggusted this too</a>. This image may be used with the same audacity as old drawings of INS Arihant, like <a href="//commons.wikimedia.org/wiki/File:Arihant_1.jpg" title="File:Arihant 1.jpg">this</a> one.
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Interestingly enough, the Indian defence minister <a rel="nofollow" class="external text" href="https://www.thehindu.com/news/national/no-first-use-nuclear-policy-depends-on-circumstances-rajnath-singh/article29109149.ece">hinted</a> at major changes in India's nuclear doctrine a few days before the tweet by the Vice-President. Equally significantly, the state owned Rajya Sabha TV released a <a rel="nofollow" class="external text" href="https://www.youtube.com/watch?v=KNIUhnCjwNo">discussion</a> about the S5-class just a few days after the tweet. All this was happening at the time of <a href="https://en.wikipedia.org/wiki/Indian_revocation_of_Jammu_and_Kashmir%27s_special_status" class="extiw" title="en:Indian revocation of Jammu and Kashmir's special status">major tensions</a> in the South Asian region.
<a href="//commons.wikimedia.org/wiki/User:Vaibhavafro" title="User:Vaibhavafro">Vaibhavafro</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>; created on Microsoft <a class="external text" href="https://en.wikipedia.org/wiki/Paint_3D">Paint 3D</a>.