Aniruddha or Aniruddh ( ), meaning unrestrained, without obstacles or unstoppable was the son of Pradyumna and Rukmavati and the grandson of Krishna and Rukmini. He is said to have been very much like his grandfather, to the extent that he may be a jana avatar, the avatar of Vishnu. The four are considered to be Vishnu-tattva or Vishnu's plenary expansions. It has been also used as one of the names of Lord Shiva.