Father Karan Johar introduces twins Roohi, Yash

Karan Johar, one of India’s biggest filmmakers, has become the father of twins - a boy and a girl - through surrogacy.

Introducing the children as Roohi and Yash, Johar said the children were "two most wonderful additions to my life and lifelines" in a tweet today, reports NDTV.

The children were born last month in Mumbai's Masrani Hospital where Shah Rukh Khan's third child AbRam was also delivered by a surrogate mother, according to media reports.

"This was an emotional yet a well thought out decision which I have taken after considering all the responsibilities and duties that come with being a parent," Johar said.

Johar said he has prepared himself "mentally, physically and logistically" to ensure that the children get all the unconditional love, care and attention. "I have submitted to the fact that my children are my world and priority," he added.

The boy has been named after Johar's father Yash Johar, one of the most celebrated filmmakers of Bollywood, who died in 2004.

Johar said his "most caring and supportive" mother will be an integral part of the children's upbringing along with "friends who are family".

The filmmaker who has delivered some of the biggest Bollywood hits such as Kuch Kuch Hota Hai and more recently My Name is Khan and this year's Ae Dil Hai Mushkil has said that his work will not have to take a backseat.

"My work, travels and social commitments would have to take a back seat and I am prepared for that."

After Kapoor and Sons, his Dharma Productions is set to release 'Badrinath Ki Dulhania' starring Alia Bhatt and Varun Dhawan.

Johar first made public his intention of being a parent in his recently released memoir titled "The Unsuitable Boy".

"I don't know what I'm going to do about it but I feel like I would like to be a parent," Johar writes in the book, adding, "I don't know how it's going to happen but I do feel the need because I have plenty of love to offer and I'd like to take it forward."

Thanking the mother, Johar has said he is "eternally grateful to the surrogate who has fulfilled my lifelong dream".

Another mention in Johar's statement is of their doctor. "A big thank you to Dr Jatin Shah for his support and guidance, and for being a family member through this wonderful and exciting journey.