Hello Karthik/Maria,
The mentioned 1757691 has a attached Program which is used to update all the index statistics,
Please download and save at location
Drive:>Sybase/SID/run_update_index_stats.sql
Execute the command as below
isql -Usapsa -S<SID> -D<SID> -X -i run_update_index_stats.sql
The command will update all the index statistics.
For regular automated maintenance of index statistics.
Automatic update index statistics setup guide link has been provided in the same note.
Regards
Anand