Two women were wounded when suspected insurgents lobbed a Chinese-made hand grenade inside a pharmacy at Thangal market here on Wednesday, police said.
The unidentified assailants escaped before police could rush to the spot.
Hospital sources said the women, customers at the shop, were stable and out of danger.
Police suspect the grenade attack was carried out as a warning after the pharmacy owner did not cough up money despite an extortion demand.
Almost all shops and pharmacies here get extortion threats from some armed groups.
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