The parents of an Indian woman who along with her seven-year-old son found dead in their home in New Jersey, suspect the involvement of their son-in-law.

N Hanumantha Rao allegedly found the bodies of his wife N Sasikala (40) and son Anish Sai when he returned home from work on Thursday evening, his family said in Prakasam district of Andhra Pradesh.

Sasikala's parents, who live on the outskirts of Vijayawada, however said they suspect the involvement of their son-in-law.

Venkateshwarlu and Krishna Kumari alleged that he was not treating their daughter well for last two years and he was also carrying on an extramarital affair.

Sasikala's parents said she had told them over phone several times that he is not looking after her well and was continuing the affair with another woman.

They said Hanumantha Rao telephoned them on Friday just to say that his wife and son have died and did not say anything more.

Y Sambasiva Rao, the lawmaker from Prakasam district, meanwhile spoke to representatives of Telugu Association of North America (TANA) over phone about the incident.

He said the mother and her son were strangulated to death.

Hanumantha Rao and Sasikala both were software professionals. Sasikala used to work from home for an IT company while Hanumantha Rao is working as an associate director in another firm.

The couple married in Vijayawada in 2004 and had been living in the US for nine years.

This is the latest in a series of incidents involving Indian techies.

Telangana aeronautical engineer Srinivas Kuchibhotla, 32, was killed when Adam W. Purinton, who earlier served in the US Navy, shot him in Olathe, Kansas, on February 23.

Vamshi Reddy Mamidala, also from Telangana, was shot dead in Milpitas, California, on February 10 in a garage in his apartment building.