Flame-of-the-forest or dhak tree (Butea monosperma).

True cochineal is a very valuable product. Cochineal is a red dye formed by crushing
insects that feed on the Mexican prickly pear cactus. In a similar way, the
eggs of the lac insects (Laccifer lacca or Kerria lacca) that feed on the ruby-coloured gum of the dhak tree can be crushed to make a dye. In the 1790s the East India Company hoped that
this might be used as a substitute for cochineal but it was not a profitable
venture.                                                                                                                                               Drawings of Indian plants and trees later named at the Royal Botanical Gardens Kew