Chakka/Hinjda
There is no particular sign which mention in palmistry for Gay or Hinjda/Eunuch.
1. If there are three to four islands back to back on heart line underneath mount of saturn then indicates unnatural sex, gayism and lesbianism.
2. Life line starts from base of thumb which indicates impotency.
3. Soft hand with supple and weak thumb and slopping head line towards mount of moon (head line tie with life line) indicates masturbation and homosexuality.
4. Marriage Line is also called Line of Affection. Marriage line does not necessarily show marriage it may only indicate attachment to someone male or female. In other words this line can indicate anyone whom you consider a friend or loved one. Marriage line is often found on porn star, prostitutes, unmarried person, celibates, saints (sadhu), and kinnar, bisexual, hinjda, eunuchs, and in such cases indicates strong friendship. So every marriage line does not necessarily represent marriage but it does represent an affection that you have felt or feel for someone.