A schoolgirl, 14, hanged herself after her boyfriend she met on Facebook rejected her.

In a heartrending suicide note, the Indian teenager wrote before her death on Tuesday: 'I am ruined and have no interest in life.'

The child, who has not been named, dated the college student for two months and had sex with him.

Local media report that she became depressed when she broached the subject of marriage and he laughed at her, saying their relationship was not serious.

She had said previously that he had 'harassed' her for the numbers of her schoolfriends, The Times of India reported.

Her family, from Bangalore, told police they had no idea about the relationship and only discovered it when her mother found her dead inside their locked house.

The schoolgirl had taken her younger brother to a cousin's house before hanging herself.

She started dating the man - a second year student at Seshadripuram College, in Yelahanka - after be befriended her on the social network site.

There was no internet at her home so she travelled to cafes in order to speak to him online.

Police say he invited her to his house where they had sex.

Her suicide note, quoted by The Times of India, reads: ‘I am depressed as Manoj is avoiding me. It is just two months since we met and fell in love. Everything was fine and I sacrificed everything to him.

'Even Manoj developed physical relationship with me. But now he says "I did everything for fun" and how can he do that to me? I am ruined and have no interest in life.'

She was found by her mother after she called on neighbours to help her break down the door.

Police arrested Manoj Kumar at his home in Nandini Layout on suspicion rape and abetment of suicide.

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