He said Singh was always criticised for all the bad things which happened in his government but now a former PMO official has disclosed that the real power was in the hands of Sonia Gandhi and Rahul.
Modi attacked Rahul for raising the issue of safety of women in his speeches, but overlooking increasing cases of crime against women in Delhi.
"During his visit to several parts of the country and even Chhattisgarh, Rahul talked about women's safety. If we switch on the television, we watch news of rape in Delhi. Dear Rahul, you are in Delhi. Your government is in Delhi. What is your government in Delhi doing? Why are rape cases being reported. What your government is doing," Modi said.
He said that according to the Government's report on crime against women, out of the top ten states with the highest number of crimes against women, seven belong to Congress and the rest of the three state belongs to Congress allies.
None of the top ten states with highest crime rates against women are BJP-ruled states, he said.
"Dear Rahul, for how long will you keep telling lies? The height of shamelessness is that although they failed to spend even one rupee during the last one year, once again they allocated Rs 100 crore fund for the Nirbhaya Fund in this interim budget. Rahul speaks as if he has nothing to do with the running of the government in Delhi. He talks as if he has come from the moon," he said.
Referring to Congress president Sonia Gandhi's son-in-law Robert Vadra, he said, "Have you seen a magician in this country who can change fortunes overnight? Yesterday, I got to know about this magician through an American newspaper. A tenth pass youth who had 1 lakh in his pocket converted it to Rs 300 crore in three years. Can you do it? It's the magic of 'mother and son'. We had heard about 2G. Now we hear of Jijaji," he said.
"The Congress should introspect about why the people of Chhattisgarh hate the party," he said, adding that usually people forgive governments after five years, but Chhattisgarh has rejected the Congress for 15 consecutive years.
Meanwhile, addressing a rally in Bhilai later, Modi said, "Ma-bete ki sarkar is trying to prevent him from coming to power. They cannot tolerate a chaiwala, who has come up with his hard labour and dedication challenging their authority. They have exploited the nation in the name of poor and poverty."
Referring to Rahul Gandhi's visits to the houses of poor, Modi said, "For them, poverty is a tourist destination and a tourism. The way people visit the Taj Mahal and take photographs, similarly he visits the houses of the poor and click photographs. Rahul is taking camera crews with him to see poverty, as he hasn't seen it before."
Mocking Sonia Gandhi's recent address in Amethi where she appealed to the voters to take care of his son, Modi said, "How can he (Rahul) think of taking care of the nation when his mother wants people to look after him."
The Gujarat Chief Minister also promised that black money stashed away in foreign banks would be brought back to India once NDA is voted to power.
Modi was in Bhilai to campaign for veteran BJP leader and sitting MP Saroj Pandey, who is contesting the election from her home constituency- Durg.