While the Indo-Russian joint venture is developing a new hypersonic version of the universal 'Brahmos' missile some vendors have already recognized the great success of the program and offer their own input in the development. 'Morinformsystem-Agat' concern is working on the universal shipborn VLSs for 'Brahmos' and 'Club' missiles. In addition to 'Brahmos' (PJ-10) it can launch all the spectrum of 'Club' family, including hitting surface, subsurface and ground targets: 3M-54TE, 3M-14TE, 91RTE2.The vendor informs:
Ship general-purpose firing complex (SGPFC) is intended for installation on upgraded and abuilding above-water ships equipped with missiles of attack Club-N and BrahMos complexes.







There are 8 subs of this class on service now. The first submarine of this class was laid down in February 1984.
According to the most trustful Russian site
However, 92% of time the weather and hydro-acoustic conditions aren’t ideal in Ice Ocean, then American sonar BQQ-5 cannot detect it at all or the distance of detection is reduced to only 10 km.There are clear visible anechoic plates on the Arihant's skin too, so its probably level of acoustic emission must be close to Russian Delta-IV class. 
