How to translate English letters/words to Bengali using c#?

Question

How to translate English letters/words to Bengali Letters/words in C# using SQL server database????

My design:


So I already collect bengali script from this website

http://symbolcodes.tlt.psu.edu/bylanguage/bengalichart.html

otherwise I upload this script:

Script:

Vowels:

Bengali Vowels
Character Name	Character	OS X Option Code	Win XP ALT Code	Entity	Hex Entity
BENGALI LETTER A	?	Option+0985	ALT+2437	অ	&#x0985
BENGALI LETTER AA	?	Option+0986	ALT+2438	আ	&#x0986
BENGALI LETTER I	?	Option+0987	ALT+2439	ই	&#x0987
BENGALI LETTER II	?	Option+0988	ALT+2440	ঈ	&#x0988
BENGALI LETTER U	?	Option+0989	ALT+2441	উ	&#x0989
BENGALI LETTER UU	?	Option+098A	ALT+2442	ঊ	&#x098A
BENGALI LETTER VOCALIC R	?	Option+098B	ALT+2443	ঋ	&#x098B
BENGALI LETTER VOCALIC RR	?	Option+09E0	ALT+2528	ৠ	&#x09E0
BENGALI LETTER VOCALIC L	?	Option+098C	ALT+2444	ঌ	&#x098C
BENGALI LETTER VOCALIC LL	?	Option+09E1	ALT+2529	ৡ	&#x09E1
BENGALI LETTER E	?	Option+098F	ALT+2447	এ	&#x098F
BENGALI LETTER AI	?	Option+0990	ALT+2448	ঐ	&#x0990
BENGALI LETTER O	?	Option+0993	ALT+2451	ও	&#x0993
BENGALI LETTER AU	?	Option+0994	ALT+2452	ঔ	&#x0994

Consonants:

Bengali Consonants
Character Name	Character	OS X Option Code	Win XP ALT Code	Entity	Hex Entity
BENGALI LETTER KA	?	Option+0995	ALT+2453	ক	&#x0995
BENGALI LETTER KHA	?	Option+0996	ALT+2454	খ	&#x0996
BENGALI LETTER GA	?	Option+0997	ALT+2455	গ	&#x0997
BENGALI LETTER GHA	?	Option+0998	ALT+2456	ঘ	&#x0998
BENGALI LETTER NGA	?	Option+0999	ALT+2457	ঙ	&#x0999
BENGALI LETTER CA	?	Option+099A	ALT+2458	চ	&#x099A
BENGALI LETTER CHA	?	Option+099B	ALT+2459	ছ	&#x099B
BENGALI LETTER JA	?	Option+099C	ALT+2460	জ	&#x099C
BENGALI LETTER JHA	?	Option+099D	ALT+2461	ঝ	&#x099D
BENGALI LETTER NYA	?	Option+099E	ALT+2462	ঞ	&#x099E
BENGALI LETTER TTA	?	Option+099F	ALT+2463	ট	&#x099F
BENGALI LETTER TTHA	?	Option+09A0	ALT+2464	ঠ	&#x09A0
BENGALI LETTER DDA	?	Option+09A1	ALT+2465	ড	&#x09A1
BENGALI LETTER DDHA	?	Option+09A2	ALT+2466	ঢ	&#x09A2
BENGALI LETTER NNA	?	Option+09A3	ALT+2467	ণ	&#x09A3
BENGALI LETTER TA	?	Option+09A4	ALT+2468	ত	&#x09A4
BENGALI LETTER THA	?	Option+09A5	ALT+2469	থ	&#x09A5
BENGALI LETTER DA	?	Option+09A6	ALT+2470	দ	&#x09A6
BENGALI LETTER DHA	?	Option+09A7	ALT+2471	ধ	&#x09A7
BENGALI LETTER NA	?	Option+09A8	ALT+2472	ন	&#x09A8
BENGALI LETTER PA	?	Option+09AA	ALT+2474	প	&#x09AA
BENGALI LETTER PHA	?	Option+09AB	ALT+2475	ফ	&#x09AB
BENGALI LETTER BA	?	Option+09AC	ALT+2476	ব	&#x09AC
BENGALI LETTER BHA	?	Option+09AD	ALT+2477	ভ	&#x09AD
BENGALI LETTER MA	?	Option+09AE	ALT+2478	ম	&#x09AE
BENGALI LETTER YA	?	Option+09AF	ALT+2479	য	&#x09AF
BENGALI LETTER RA	?	Option+09B0	ALT+2480	র	&#x09B0
BENGALI LETTER LA	?	Option+09B2	ALT+2482	ল	&#x09B2
BENGALI LETTER SHA	?	Option+09B6	ALT+2486	শ	&#x09B6
BENGALI LETTER SSA	?	Option+09B7	ALT+2487	ষ	&#x09B7
BENGALI LETTER SA	?	Option+09B8	ALT+2488	স	&#x09B8
BENGALI LETTER HA	?	Option+09B9	ALT+2489	হ	&#x09B9
BENGALI LETTER RRA	?	Option+09DC	ALT+2524	ড়	&#x09DC
BENGALI LETTER RHA	?	Option+09DD	ALT+2525	ঢ়	&#x09DD
BENGALI LETTER YYA	?	Option+09DF	ALT+2527	য়	&#x09DF
ASSAMESE LETTER RA WITH MIDDLE DIAGONAL	?	Option+09F0	ALT+2544	ৰ	&#x09F0
ASSAMESE LETTER RA WITH LOWER DIAGONAL	?	Option+09F1	ALT+2545	ৱ	&#x09F1

Diacritic Signs and Punctuations

Bengali Signs and Punctuations
Character Name	Character	OS X Option Code	Win XP ALT Code	Entity	Hex Entity
BENGALI SIGN CANDRABINDU	??	Option+0981	ALT+2433	ঁ	&#x0981
BENGALI SIGN ANUSVARA	??	Option+0982	ALT+2434	ং	&#x0982
BENGALI SIGN VISARGA	??	Option+0983	ALT+2435	ঃ	&#x0983
BENGALI SIGN NUKTA	??	Option+09BC	ALT+2492	়	&#x09BC
BENGALI VOWEL SIGN AA	??	Option+09BE	ALT+2494	া	&#x09BE
BENGALI VOWEL SIGN I	??	Option+09BF	ALT+2495	ি	&#x09BF
BENGALI VOWEL SIGN II	??	Option+09C0	ALT+2496	ী	&#x09C0
BENGALI VOWEL SIGN U	??	Option+09C1	ALT+2497	ু	&#x09C1
BENGALI VOWEL SIGN UU	??	Option+09C2	ALT+2498	ূ	&#x09C2
BENGALI VOWEL SIGN VOCALIC R	??	Option+09C3	ALT+2499	ৃ	&#x09C3
BENGALI VOWEL SIGN VOCALIC RR	??	Option+09C4	ALT+2500	ৄ	&#x09C4
BENGALI VOWEL SIGN E	??	Option+09C7	ALT+2503	ে	&#x09C7
BENGALI VOWEL SIGN AI	??	Option+09C8	ALT+2504	ৈ	&#x09C8
BENGALI VOWEL SIGN O	??	Option+09CB	ALT+2507	ো	&#x09CB
BENGALI VOWEL SIGN AU	??	Option+09CC	ALT+2508	ৌ	&#x09CC
BENGALI SIGN VIRAMA	??	Option+09CD	ALT+2509	্	&#x09CD
BENGALI AU LENGTH MARK	??	Option+09D7	ALT+2519	ৗ	&#x09D7

Symbols and Numbers

Bengali Symbols and Numbers
Character Name	Character	OS X Option Code	Win XP ALT Code	Entity	Hex Entity
BENGALI DIGIT ZERO	?	Option+09E6	ALT+2534	০	&#x09E6
BENGALI DIGIT ONE	?	Option+09E7	ALT+2535	১	&#x09E7
BENGALI DIGIT TWO	?	Option+09E8	ALT+2536	২	&#x09E8
BENGALI DIGIT THREE	?	Option+09E9	ALT+2537	৩	&#x09E9
BENGALI DIGIT FOUR	?	Option+09EA	ALT+2538	৪	&#x09EA
BENGALI DIGIT FIVE	?	Option+09EB	ALT+2539	৫	&#x09EB
BENGALI DIGIT SIX	?	Option+09EC	ALT+2540	৬	&#x09EC
BENGALI DIGIT SEVEN	?	Option+09ED	ALT+2541	৭	&#x09ED
BENGALI DIGIT EIGHT	?	Option+09EE	ALT+2542	৮	&#x09EE
BENGALI DIGIT NINE	?	Option+09EF	ALT+2543	৯	&#x09EF
BENGALI RUPEE MARK	?	Option+09F2	ALT+2546	৲	&#x09F2
BENGALI RUPEE SIGN	?	Option+09F3	ALT+2547	৳	&#x09F3
BENGALI CURRENCY NUMERATOR ONE	?	Option+09F4	ALT+2548	৴	&#x09F4
BENGALI CURRENCY NUMERATOR TWO	?	Option+09F5	ALT+2549	৵	&#x09F5
BENGALI CURRENCY NUMERATOR THREE	?	Option+09F6	ALT+2550	৶	&#x09F6
BENGALI CURRENCY NUMERATOR FOUR	?	Option+09F7	ALT+2551	৷	&#x09F7
BENGALI CURRENCY NUMERATOR ONE LESS THAN THE DENOMINATOR	?	Option+09F8	ALT+2552	৸	&#x09F8
BENGALI CURRENCY DENOMINATOR SIXTEEN	?	Option+09F9	ALT+2553	৹	&#x09F9
BENGALI ISSHAR	?	Option+09FA	ALT+2554	৺	&#x09FA

So, I want to translate above design based.

Please help me.