SELECT slno FROM table_25383715_1 WHERE contact_person = "SDE (P), Thiruppattur"
CREATE TABLE table_25383715_1 (slno VARCHAR, contact_person VARCHAR)
SlNo ของผู้ติดต่อ SDE (P), Thiruppattur คืออะไร?
What was the SlNo no of contact person SDE (P), Thiruppattur?