Hi Manoj,
Looking at this output,
* SW02.54 # show sharing  Load Sharing Monitor
 Config    Current    Agg       Ld Share    Ld Share  Agg   Link    Link Up
 Master    Master     Control   Algorithm   Group     Mbr   State   Transitions
 ==============================================================================
 
   10:6               LACP      L3_L4       10:6       -      A        2
                                L3_L4       10:27      -      A        4
 it seems like the ports are not part of the aggregation group itself. 
Please check if the LACP PDUs are sent and received on the ports. 
collect the following outputs: 
show lacp counters. 
This article would help you in troubleshooting. 
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-verify-if-the-LACP-PDUs-are-receive... 
Let us know if we can help further!