How to memorize periodic Table

THE FIRST 18 ELEMENTS

(H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar) 

Hie He Lies Because Boron CanNot Oxide Florine..
New Nations Might Also Sing Peaceful Song Clearly Again (Thanks to Dikshita Desai )

THE S-BLOCK ELEMENTS (LEARN ALONG THE GROUP)

Group 1 (Li Na K Ru Cs Fr) 

Sentence: LiNa Ki Ruby Ce Friendship
         

Group 2 (Be Mg Ca Sr Br Ra)

Sentence: Beta Mange Car Santro Bap Razi

THE P-BLOCK ELEMENTS (LEARN ALONG THE GROUP)

Group 13 ( B Al Ga In Ti)

Sentence: Baba Ali Gaye India Til lene
                BAl Gaye India to Thailand

Group 14 (C Si Ge Sn Pb)

Sentence: Chemistry Sir Gives Sanki Problems
                Chale Shiv Ge Sang Parbati

Group 15 (Ni P As Sb Bi) 

Sentence: Nitin Phalguni hAs a Sabudana Biscuit
               Nahi Pasand Aise Sab Bhai
               Nahi Pyaare Aise Sab Bigad (jaayega)
               Nana Patekar Aishwariya SaB Beautiful (By Anonymous )

Group 16 (O S Se Te Po)

Sentence: O S(Us) Se TePo
                Oh! Style Se Tel Polish

Group 17: (F Cl Br I At)

Sentence: Free Class Bears Indian Attitude
                  First Class Biriyani In Austria
                  Fine Colour & Brightness In  Aiwa-tv
                  Fir Cal Bahar aaI Aunty
                  Faltu Class (mein) Boring Instructor Aata (hai)

Group 18: (He Ne Ar Kr Xe Rn)

Sentence: HeNe Agar-Kare Xero Run pe out..
                He (man) Ne Arnold (schewwarznegar) Ko Xinda Ronda
                cHeNe mArKer Xentury Runs!
Explanation : Chinese products are well known for their low quality. Chinese = chnee(in Hindi) Above is an exclamation:  Xentury nam ka ye Chinese marker chaltaa hai!!.

THE D-BLOCK ELEMENTS( LEARN ALONG THE PERIOD/SERIS)

Period 4 ( Sc Ti V Cr Mn Fe Co Ni Cu Zn )(Thanks to Vineeth for correction)

Sentence: Sachin Tendulkar Very Crazy Man, FerCondom Nahi ChuZna
                Science Teacher(Ti) Vineeta Criplani. ManFer Control Nai Kyun(Cu) Zaani
                Science Teacher(Ti) (is) Very Cruel ! Mange Fees Coi Nahi Cure Zane.
                Science Teacher(Ti) (is) Very Cruel !(Gives no) Free Coaching (to) Nitin(, my poor) CouZin

Period 5 ( Y Zr Nb Mo Tc Ru Rh Pd Ag Cd )

Sentence:  Ye Zara Nawaab Maut(Mo) Tak(Tc) Rooh(Ru) Rahegi Padhaai Aage Chhodo
                 (it is actually a sher) Yeh Zindagi Nahi Mohabbat Teri Ro Rokar Pukaregi Aaj(tujhe ye) Chandni 

Period 6 ( Lu Hf Tu W Re Os Ir Pt Au Ag )

Sentence: La HafTa Warna Re us(Os) Iron (rod se) Pitega Aur hospital jAeega

Period 7: (Ac Rf Db Sg Bh Hs Mt Ds)

Sentence: Arrey R D Sharma (ki) Book (mein) Hote (hain) Maths (ke) Difficult (sawaal)

THE F-BLOCK ELEMENTS( LEARN ALONG THE PERIOD/SERIS)

Lanthanides: (Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu)

There are divided lanthanides into 3 parts as following:

Ce Pr Nd Pm Sm /// Eu Gd Tb Dy Ho /// Er Tm Yb Lu

1^st part: (Ce Pr Nd Pm Sm)

Sentence: Celina (aur) Priety Ne dande (se) Pammy (aur) Simmy (ko mara)

2^nd part: (Eu Gd Tb Dy Ho)

Sentence: Europe Gaya (to) TB (aur) Dyarrohoea Ho(gaya)

3^rd Part: (Er Tm Yb Lu)

Code—Erre (array) Tamatar Yellow (aur) bLu

Actinides—(Th Pa U Np Pu Am Cm Bk Fm Md No Lr)

Sentence: (Th)a(Pa) U [are] (N)ot (p)akistani

                   (Pu)n(Am) (C)a(m)e (B)ac(k) (F)ro(m) (M)a(d)rid [&] (N)ot [from] (L)e(r)os

                    (Thanks to Jayesh Bhosale for this.)

               (time) Tha PaUNe Paanch ACBar ce FakirMiyaaan Ne Li rakam.

Explanation:
**In “PaUNe” I have taken the first letters of Pa U& Np.**
**In “ACBar”, it is actually Akbar, I have taken the first letters of Am Cm& Bk**
**In “Li rakam” I have taken first letter of Lr for Li and Second letter of Lr i.e. ”r” for rakam**

Since this ain't very effective I made something new. There are divided lanthanides into 3 parts as following:-
Th Pa U Np // Pu Am Cm Bk// Fm Md No Lr

1^st part: ( Th Pa U Np )

Sentence: Thoda Pyar UN parents (se bhi karo.)

2^nd part: (  Pu Am Cm Bk )

Sentence: Pulkit ke Aam Cum Bhike

3^rd Part:  ( Fm Md No Lr )

Sentence: Family aMdani mein No Laraiee

One more way: Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
                         THode PAhelwaan (unse) N(i)Ptenge PUrane aAM kam(Cm) B(i)Kenge C(a)Fe (me) aise(Es) F(ar)Mao M(a)Dam nashta(No) lao(Lr) (Thanks to Romeo Raj  for this.)