He left after orders of the Delhi High Court which took an undertaking from him that he would not be visiting any other country except Britain and would submitted medical records of his treatment upon his return.
The 57-year-old head of Vectra and founder director at Tatra-Sipox UK assured the court that his son, who has a house here, would stand as guaranteer for him.
Rishi pleaded before the high court that he is suffering from a severe liver ailment and as there is no treatment for that disease in India, he is required to go abroad to seek personal consultation with an expert.
"As observed by my predecessor (judge) dated October 17, 2012, there is strong apprehension that accused (Rishi) may not return to India once granted permission to go abroad, to participate in further investigation or to face trial and his presence cannot be ensured without wasting lot of time and efforts before the investigating agency or before the court," special CBI judge Ravinder Kaur had said while rejecting his plea.