Dear Ramkumar,

Thank you for your help and patience. My sincere apologies for the delay with the apprisal.

The presented object appears to be an oil painting, gouache, or overworked print with the measurements of 53 x 39 inches. This is a detail from an original painting made by Peter Paul RUBENS (1577-1640) in the year 1609. The original painting is nowadays exhibited in the collection of the Alte Pinakothek in Munich Germany. I attach a link to the painting in this collection (https://www.sammlung.pinakothek.de/de/artwork/o5xrMEr47X). This miniature is either painted as gouache or it is an overworked print. It is signed in the area of the collar with the name "Alka". The style and the letters of the signature speak for dating into the 20th century. Sadly no further information regarding the biography of this artist is mentioned in reference books or similar databases. Regarding the technique
Works by this artist were recently not offered and sold on the international auction market.
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 200 to 400 USD if this is a painted artwork.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
George