Oh sorry everyone.....Just enabled nested virtuilization and it works fine...sorry for bothering.....
but another issue has arised now....cannot connect to the console of VM in ESXi over network via telnet...it is working fine for other VM's...but just this vSRX 15.1 D50 is not working....console just shows Linux Booting Message and nothing after that...
Waiting eagerly for your kind replies.
brgds.