Mercury, also known as Buddha in Vedic astrology, is the planet of intelligence, communication, learning and quick wits. If it is placed in the 11th House for Libra ascendant, it can have both positive and negative implications on one's life.
Firstly, let's consider that Mercury is in its enemy sign state which may indicate difficulty or challenges in communication and other intellectual pursuits. However, as it aspects the fifth house of intellect, creativity, progeny and happiness, it can provide a boost to these areas of life. The fifth house is also the house of speculative gains such as investments and gambling.
Being the lord of the ninth and twelfth houses indicates that Mercury will take care of those areas of life but since both are considered malefic houses, there could be some obstacles or hardships related to them. The ninth house relates to spirituality, higher education, foreign travel and luck while the twelfth house rules over losses, expenses incurred on charity or pilgrimage trips and spiritual pursuits among other things.
Since Mercury is considered a natural karaka for the fourth house of home and property as well as the tenth house which relates to career or profession - this placement may bring some luck or success in these areas due to their strong connection with Mercury.
However overall placing Mercury in this particular House means one must keep an eye out for possibilities of quarrels with friends or older siblings who may not agree with your opinions frequently.
For relationships: Those seeking romance should evaluate their approach when communicating with new people. Being too talkative or argumentative could lead to arguments instead of harmonious connections.
Financially: This positioning suggests the potential for gains through speculative activities such as investing in stocks where sharp analytical thinking will come into play.
Careerwise: This placement indicates professions related to communication such as public speaking/mass communication because native's speech delivery reflects positivity on listeners by virtue of Venus being ascendant Lord but again need to be careful regarding arguments.
Overall, having Mercury in the 11th House in Libra suggests good outcomes. The results of this placement will rely heavily on how the native interacts and behaves with others. To enjoy success, an individual should focus their attention towards enhancing their communication skills to prevent any discrepancies or misunderstandings from turning into situations that become complicated later.
Understanding astrological predictions is an intricate process that requires deep knowledge and expertise to provide accurate insights. Hence, it is advisable to seek counsel from a learned Vedic Astrologer for an in-depth analysis of one's horoscope considering all possible factors affecting a particular placement.