Here are simple, meaningful Indian/Jain-friendly boy names starting with T and R:

Boy Names Starting with T

1. Tirthank / Tirthankar – One who shows the path to liberation (name used in respect of Jain Tirthankaras)
2. Taruṇ – Young, energetic
3. Tarak – Savior, one who helps cross the ocean of worldly life
4. Tejas – Brightness, brilliance
5. Tejendra – Lord of brilliance
6. Tushar – Snow, cool and calm
7. Tathya – Truth, reality
8. Tanay – Son
9. Tapan – Heat, sun; also used for inner spiritual heat/effort
10. Taral – Soft, gentle, liquid-like
11. Titikshu – One who has great tolerance/forbearance
12. Trilok – The three worlds (upper, middle, lower)
13. Trilokesh – Lord of the three worlds
14. Teerthesh – Lord of holy places (teerths)
15. Tejomay – Full of light, radiant

Boy Names Starting with R

1. Rushabh / Rishabh – Name of the 1st Jain Tirthankara, also means “bull, best”
2. Rajit – Decorated, shining
3. Rajkumar – Prince
4. Ravin – Sun
5. Rakesh – Lord of the night (moon)
6. Rahul – Efficient, conqueror of miseries (often used in Jain families)
7. Rajat – Silver, shining
8. Riddhesh – Lord of prosperity
9. Ritvik – Priest, one who performs sacred rites
10. Rihan – Dawn, God’s chosen one (modern, popular)
11. Ritesh – Lord of truth / lord of ceremonies
12. Rohit – Red, rising sun
13. Rikesh – Lord of the senses
14. Riteshwar – Lord of right conduct
15. Ravinandan – Son of the Sun

If you want, you can tell me:

• Modern/rare or traditional,
• Short names (4–5 letters) only,

and I can narrow the list further.