To strengthen Mercury (Budh) in your Kundli 

This Jaap is beneficial during Budh Mahadasha or Antardasha, or when Mercury is weak or malefic in your birth chart. It enhances intelligence, communication, business skills, and clarity of thought. 

Mantra: 

ॐ उद्बुध्यस्वाग्ने प्रति जागृहि त्वमिष्टापूर्ते सं सृजेधामयं च। 

अस्मिन्त्सधस्‍थे अध्‍युत्तरस्मिन् विश्वे देवा यशमानश्च सीदत।।