Find your nakshatra pada
Every nakshatra has four padas. The one the Moon stood in when you were born is yours, and the syllable a name starts with comes from it.
Find your nakshatra pada
Your pada and its syllable
By tradition a child is named from the syllable of its nakshatra pada. Find the pada the Moon stood in at birth, and take the name from there.
Names are matched on the sound of the syllable rather than its exact spelling — the टा pada is named from Tanvi and Tanmay, which are spelled with त. That is how families and pandits read these tables.