Sanjay's Mom is a minor character who briefly appears in a few episodes. She is Sanjay's biological mother.
Not much is known about Sanjay's mother, or why she married Sanjay's Stepdad nor the whereabouts of his biological father, but she appears to be his biological mother because she bears a great resemblance to him and he has never referred to her as a step mother. She has only made a few appearances, almost entirely in group shots, and has one line of dialog in the entire series.
Sanjay's mother is apparently of Indian descent. She sort of resembles Trixie in the looks of her eyes and clothing, but her hair is curly and her skin is the same shade as Sanjay's. She also speaks with an Indian accent like her son Sanjay. She wears a purple colored shirt with sparkles, a darker purple colored skirt, and purple earrings.
Sanjay's mother appeared in the episode Snow Bound along with Mrs. Turner, A.J.'s Mom, and Elmer's Mom at a ski resort. They were trying to get away from their kids and husbands, when Mr. Turner came looking for them because he thought his wife was in danger from the Abominable Snowman. She is married to Sanjay's Stepdad, an American military soldier, and they live on base along with her natural son Sanjay, and an unnamed older son of the father who is also in the military.