An Indian cabinet minister resigned Tuesday after a state court charged him with corruption, in a further embarrassment for Prime Minister Manmohan Singh\'s scandal-tainted government. \"I have given my (resignation) papers to the prime minister (and) now it is up to him to forward it\", Virbhadra Singh, the minister for small, micro and medium industries, told reporters. The move came a day after a court in Himachal Pradesh charged Singh and his wife with conspiracy and corruption in a 23-year-old case related to one of his five terms as chief minister of the northern state. The couple has denied all the charges, but a senior official from the prime minister\'s office told Agence France Presse that Manmohan Singh had accepted the resignation. Although the case is an old one, the charges against the minister are a further blow to the image of India\'s ruling coalition which has been embroiled in a series of corruption scandals. The most high profile case involved former telecom minister A. Raja who quit in November 2010 over the sale of second-generation (2G) licenses at far below their commercial rate to selected companies. Raja was later arrested and is currently on trial.