Dear ......... garu,
        We are very happy to say thank you that you have a kind sympathetic heart towards the flood victims like us.We received initial support from the government for basic needs like food,water for drinking,clothing and temporary shelter.After the flood catastrophe were eagerly waiting for the permanent sources.At that time we received a good news from you that you have sent Ten Lakhs of rupees for immediate relief for the victims.
  We are very muck thankful for your kind heart.Help always pays gratitude
  Thank you sir 
                                                                                                  Yours faithfully

I hope it helps.

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