Question

format of informal letter in Hindi

Answer 1

Hope this is helpful for you

Answer 2

$\begin{gathered}\begin{gathered}{\large \qquad \boxed{\boxed{\begin{array}{cc} \ ▶ \: \: \bf भेजने \: वाले \: का \: पता \\ \\ \ ▶ \: \: \bf तारीख \\ \\ ▶ \: \: \bf विषय \\ \\ ▶ \: \: \bf मुख्य \: सामग्री \\ \\ ▶ \: \: \bf अभिवादन\end{array}}}}\end{gathered}\end{gathered}$