When did Chetan Anand win his first men's single?
CREATE TABLE table_17590 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
)
SELECT MIN("Year") FROM table_17590 WHERE "Mens singles" = 'Chetan Anand'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When did Chetan Anand win his first men's single? ### Input: CREATE TABLE table_17590 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
) ### Response: SELECT MIN("Year") FROM table_17590 WHERE "Mens singles" = 'Chetan Anand'