Go through below code and rub sql queries that need to get executed.
INSERT INTO `eav_attribute` (
`attribute_id` ,
`entity_type_id` ,
`attribute_code` ,
`attribute_model` ,
`backend_model` ,
`backend_type` ,
`backend_table` ,
`frontend_model` ,
`frontend_input` ,
`frontend_label` ,
`frontend_class` ,
`source_model` ,
`is_required` ,
`is_user_defined` ,
`default_value` ,
`is_unique` ,
`note`
)
VALUES (
NULL , ‘1′, ‘karat10′, NULL , NULL , ‘varchar’, NULL , NULL , ‘text’, ‘Karat 10 ‘, NULL , ”, ‘1′, ‘0′, ‘0′, ‘0′, ”
);
After insert query, the attribute generated is my case is 154. Next this attribute needs to be associated to an attribute set, …

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