The incident came to light when the in-laws of thecouple''s son reached their home at posh Guru Teg Bahadur Roadyesterday and found them in an unconscious state.
The two were admitted to a hospital where theircondition is normal, they said.
Retired engineer S C Gupta (72) and his wife Kanta(70), whose two sons work in Dubai, had kept Shankar as adomestic help only a few days ago.
The domestic help on Wednesday mixed poison in theirfood and decamped with a cash of Rs 20,000 and eight expensivewatches, they said.
Police is preparing sketch of Shankar as the coupleneither had Shankar''s address nor photograph.