A classical singer from Varanasi is currently on an extended practice session these days in preparation for the most talked about marriage of Bollywood couple Abhishek Bachchan and Aishwarya Rai.

Channulal Mishra said that he has been invited by Amitabh Bachchan to perform at Abhishek's wedding.

"Amithabh Bachchan said that he wanted to organise a programme on the occasion of the wedding of Abhishek and Aishwarya. He said the date for the wedding was not fixed, but I have come to know that it will be sometime in March," Mishra said.

Families of Abhishek Bachchan and Aishwarya Rai on Monday said that both had got engaged at a private ceremony. Abhishek reportedly placed a diamond ring on Aishwarya's finger.

Speculation of a formal link gained ground after both families visited several temples to pray for them, as their stars were reportedly not in harmony.

Reports of an impending marriage were earlier fuelled after Ajitabh Bachchan, the younger brother of Amitabh, who met a Bangalore based astrologer Chandrashekhar Swami, to see if the couple's horoscopes matched.

The planets also seem to be blessing the couple. They were declared to be perfect by matched by the astrologer.

Abhishek was earlier engaged to Bollywood star Karisma Kapoor in 2002, but the marriage was called off for unexplained reasons. Abhishek (30) and Aishwarya (33) have starred together in Hindi films like Dhai Akshar Prem Ke, Kuch Na Kaho, Umrao Jaan and Dhoom II as also Mani Ratnam's "Guru". Aishwarya, who has acted in over 40 films, was crowned Miss World in 1994. Abhishek too has acted in about 40 films.