Lambadi embroidery is a traditional form of embroidery that originated from the Lambada tribe of Telangana, India. It is known for its vibrant colors and intricate patterns. Let's analyze each statement separately to determine their correctness.

Statement 1: It is embroidery with geometrical patterns done on cotton and silk fabrics.
This statement is correct. Lambadi embroidery involves the use of geometrical patterns that are created using various stitches such as cross-stitch, herringbone stitch, and satin stitch. These patterns are typically stitched on cotton and silk fabrics, which provide a smooth surface for the embroidery work.

Statement 2: Its theme is influenced by local forests and birds.
This statement is also correct. The theme of Lambadi embroidery is heavily influenced by the tribal lifestyle and nature of the region. The motifs used in Lambadi embroidery often depict elements from the local forests, including trees, flowers, leaves, and animals like birds. The embroidery designs reflect the close relationship between the Lambada tribe and their natural surroundings.

Explanation:
Both statements are correct, hence the correct answer is option 'C' - Both 1 and 2.

Lambadi embroidery is not only a form of artistic expression but also serves as a means of preserving the cultural heritage of the Lambada tribe. The geometrical patterns and vibrant colors used in this embroidery style are visually striking and reflect the rich cultural traditions of the tribe.

The use of cotton and silk fabrics in Lambadi embroidery allows for intricate detailing and ensures the longevity of the embroidered pieces. The embroidery is done by hand, using a needle and thread, and the skilled artisans carefully bring the traditional motifs to life.

The influence of local forests and birds on Lambadi embroidery adds a unique touch to the designs. It showcases the deep connection between the Lambada tribe and their natural environment. The motifs of trees, flowers, leaves, and birds symbolize the tribe's close association with nature and their reliance on it for sustenance.

In conclusion, Lambadi embroidery is a beautiful art form that combines geometrical patterns with the influence of the local forests and birds. It represents the cultural identity and traditions of the Lambada tribe, making it a significant form of artistic expression in Telangana, India.