hello , I tried in both ways , they are

1#) through k2 new item creation form .
2#) through custom php and mysql code using both plain code and joomla libraries .

but in both cases Data is not inserting into the fulltext field of the table k2 table - jlh7i_k2_items . but for other fields of jlh7i_k2_items table it inserting fine in both ways. Does this fulltext field is locked ?.

Please help.

Thank you.