Pakistan is already working on Hypersonic Missile Pak naval P282 missile won't be ballistic missile but it will be hypersonic land based missile intialy to counter huge indian navy to negate a blockade of Pakistan ecnomicical sea zones
Hypersonic missile range will be more than 1000 km approximately to stop indian naval ships
Hypersonic Missile in naval hands win a navy half of war as there is no system exists to engage counter or stop these missiles
So indian navy will like to be away to get destructed by these missiles
Indian brahmos will loose all it's importance against these hypersonics
Main point is can India get hypersonic or develop them ?
Answer is NO
Even USA has difficulty to make one even have world's best defence manufacturers and technology
How would India indian DRDO HAL and all others can't even make a cruise missile
Brahmos was procured from Russia on TOT so they lack to get even hypersonic
Can Russia give India hypersonic tech?
Never
Reason India already choose sides with USA and Russia don't want USA to get that cutting edge missile tech through india
Giving India a hypersonic missile buy Russia will discomfort only reliable partner of Russia to loose edge over India
Pakistan already getting help from china to develop hypersonic missile to counter huge defence procurement of India to balance the power in region