* Ruling party BJP criticizes board
* Board's decision follows months of pro-ban stance
* Temple draws million of devotees a year (Adds reactions by activists, ruling party, details)
NEW DELHI, Feb 6 (Reuters) - The board of an ancient Hindu hill temple in southern India said on Wednesday it now favoured allowing female worshippers of menstruating age to enter, reversing its previous support for a centuries-old ban.
The board overseeing the Sabarimala temple also said it would withdraw from efforts to challenge the Indian Supreme Court's ruling that the ban on entry for women and girls aged 10-50 must be ended to uphold rights to equality of worship.
The temple in Kerala state has been the site of tension since the ruling in late September. Thousands of devotees have blocked attempts by women to visit the site. Some protesters have threatened the women and pelted them with stones, causing injuries to some and damaging property.
On Wednesday, the Tranvancore Devaswom Board told the Supreme Court it would abide by its decision to open the temple to women, after holding off for months saying it did not want to violate a historic tradition.
"After the Supreme Court judgement, we discussed a lot. We realise that we should respect the judgement of the court," lawyer Rakesh Dwivedi told Reuters.
The board had decided to withdraw from petitions challenging the lifting of the ban because it now believed it was discriminatory, its president Padmakumar was quoted as saying by Reuters partner ANI. After the Supreme Court ruling, Hindu groups physically blocked younger women from entering the temple, though a number managed to get in with help from police.
Devotees and petitioners in favour of the ban have contended that women should not be allowed inside the temple to prevent its deity Ayyappan from breaking the oath of celibacy he is believed to be observing. Some of them also consider menstruating women impure.
Pro-ban activists and politicians from Prime Minister Narendra Modi's Hindu nationalist Bharatiya Janata Party called the temple board's decision a betrayal.
"The government has not shown least respect to the sentiments of the devotees. The people of Kerala will give befitting reply," Sreedharan Pillai, state president of the BJP, said, blaming the state government led by a communist alliance of undermining Hindu traditions.
The temple in Kerala pays homage to the god Ayyappan and draws millions of worshippers each year. It is one of only a few in India which had barred entry to girls and women between the ages of 10 and 50.
Activist Rahul Easwar, grandson of a former chief priest of Sabarimala, said the temple board had succumbed to pressure from the government. (Reporting by Sudarshan Varadhan; Additional reporting by Jose Devasia in KOCHI and Suchitra Mohanty in NEW DELHI; Editing by Catherine Evans)
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