When Dixit met Sai, was he focused on getting his lame leg cured?

No, he was not primarily focused on his physical ailment. Chapter 4 reveals a profound aspect of Kakasaheb Dixit's character. Although Chandorkar told him that Sai could make his 'lameness go away immediately,' Dixit did not consider his physical condition a true deficiency. He expressed that the 'real lameness is of the mind' and implored Sai to remove that instead. He viewed the physical body as a temporary 'worldly carriage' made of 'skin, blood, meat, and bones,' and was far more concerned with his spiritual and mental well-being than a physical cure.