On demand : দাবিমাত্র;
Related Words
on demand  on the mat  ondemand  See Words Also In
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Appropriate Prepositions
Appoint to(নিযুক্ত করা/হওয়া): Kibria has been appointed to the post of Headmaster.
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Deprived of (বঞ্চিত): He was deprived of education due to extreme poverty.
Infested with (অতিষ্ঠ): The room is infested with rats.
Sentence to, for (দন্ডাদেশ দেওয়া): He was sentenced to death for murder.
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Idioms
At a discount (অনাদৃত) Female education is no longer at a discount now.
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Worthy of (যোগ্য) - He is worthy of a good job.