Final answer:
Sardar Baghel Singh led a successful expedition to capture Sisganj Gurdwara in Delhi. He had around 4,000 Sikh troops with him during the expedition.
Step-by-step explanation:
In the context of Sardar Baghel Singh, he was a Sikh military commander who led a successful expedition to capture Sisganj Gurdwara in Delhi in 1783. While I couldn't find an exact figure for the size of the force he left in Delhi, it is documented that he had around 4,000 Sikh troops with him during the expedition. It is important to note that the Sikh troops mentioned in different historical contexts highlight the significant role that Sikh warriors and leaders played in the history of India, a legacy continued through various events such as the Guru Tegh Bahadur's martyrdom who was a Sikh leader executed by Mughal Emperor Aurangzeb, as well as participation in World Wars under the British Empire.