2491 Tvashtri, was discovered on February 15, 1977 by William Sebok at Palomar Mountain Observatory. It has a period of 2 years, 209 days.
It was named for Tvashtri (or Tvastar), the builder of the universe and lord of construction and creativity in Hindu cosmogony; he is called upon by people who want children.
The meaning of asteroid Tvashtri seems to be: construction, divine plan, ideas of the universe's nature and origin.