yes Aravind, lagna degree in pushkara navamsa is said to give some strength to the chart.
Probably helps the person be able to handle adversity and stuff in a better way.
Direct quote from Komilla Suttons site
"If a chart does not appear to have any great strength but it has ascendant in pushkara bhaga and 10th lord in pushkara degree, the quality of the is chart changes and your analysis will be different. The chart is showing extra ordinary strength with both the lagna and 10th lord fortifies. Pushkara will bring strength to the chart, nourish it after it has used up some of its energy. The individual may not immediately gain the strength, but is guided through these auspicious degrees to work with their issues, accept them and learn to overcome them.
Planet in an exact degree is stronger than the bhaga so the quality will be more intense. If you have Sun exalted in 21º Aries, it is in pushkara navamsha and bhaga. But this is also the debilitated navamsha of the Sun. Sun debilitated by navamsha shows hidden lack of confidence, need for support of others, and low self esteem. The weakness indicated by the Sun in its debilitated navamsha is being over-ridden by the fact that the Sun is pushkara both in navamsha and bhaga. Therefore an individual may experience some weaknesses of this debilitation, but they are quickly able to overcome it and make the Sun, its karakas, house rulerships etc positive. Low esteem will be there but the person learn confidence, pushkara will make them feel strong instead of weak.
All texts say lagna, lagna lord, and 10th lords in Pushkara gives great strength and good luck to the birth chart. In my experience, the more planets in pushkara, the stronger the chart. The lagna is a pushkara degree or navamsha brings fortune and success. If the lord of a house is placed in pushkara or the bhava Madhya of the house is placed in pushkara, this strengthens it and makes it a force to do good. Pushkara imparts sweetness to the chart that brings in higher qualities of goodness, spiritual aspirations and material success as."