Company Law ka sabse bada puzzle - Meri dilli, kya hoga?

Mujhe lagta hai ki main to 100 % ready hoon, par sirf yeh Company Law ka ek point hamesha se kaafi problematic lag raha hai. To, main iske baare mein ek sawal puchunga. Kya hoga jab ek private company public limited company mein badal jayegi? Aur kyaa karna hoga, company ka naam ka registration? Aur ye sab kya hoga, khud se change ho jayega ya phir se registration karni padayegi?

Mujhe iska concept thik karna hai, par main confuse hoon kya hoga, kya change hoga name se registration tak. Main to 3 din mein exam hai aur mujhe abhi tak iska theka nahi mil raha.