Top seed Mankad lost to Uzbekistan's Dmitry Mazur while 18-year old Liberhan shocked fifth seed Matwe Middelkoop of The Netherlands in the ITF Futures tournament.
The unseeded Indian Davis Cupper beat the sixth seed in straight sets in the ITF tournament.
Both made the grade in the ITF Futures tournament with contrasting wins.
The sixth seed will meet unseeded Thai challenger Thassha Vitayaviroj in the semi-finals of the ITF women's tournament.
The young Indian star went down tamely to Akgul Amanmuradova 2-6, 3-6 in the singles final of the NSCI-ITF women's tennis tournament.
Joining them were Chin-Bee Khoo of Malaysia and Akgul Amanmuradova of Uzbekistan, in the ITF Futures tournament.
Rushmi Chakravarthy also made the grade in the CCI-ITF Futures tournament in Mumbai.
The diminutive Mumbai lass beat the Wimbledon girls' doubles champion to enter the semi-finals in the NSCI-ITF women's tennis tournament.
The top seed was beaten by qualifier Archana Venkataraman in the ITF Futures tournament in Mumbai.
The lone Indian survivor was beaten by Japanese qualifier Naoki Arimoto in the ITF Futures tennis tournament.
Yeu-Tuoo Wang of Chinese Taipei, at 204, is the highest ranked player in the fray for the ITF Futures tennis tournament in Mumbai.
The top seeded Indian beat compatriot Lalit Mann to set up a meeting with Shahzad Khan in the Pakistan ITF event.
The Indian ace easily beat Silawan Choptang of Thailand in the 10,000 ITF tournament in Jakarta.
The Indian ace made the grade in the singles and doubles in the second leg of the ITF women's event in Jakarta.
Sania was forced to drop a set by Shruthi Dhawan before making the grade in the ITF event in Jakarta.
The two Indian junior Davis Cup team members posted contrasting wins in the ITF Grade 5 tournament in Islamabad.
However, her compatriot Sai Jayalakshmi failed to make it, losing to unseeded Julia Vorobieva, in the ITF tournament.
The unseeded Vakharia toppled the top seed in straight sets to enter the last 8 in the ITF tournament.
Jeevan Nedunchezian's win over world No. 14 Bohan Bozovic could not prevent India from going down in the opening tie of the ITF Junior Davis Cup.
Malaysia's Chin-Bee Khoo and Suchanan Viratprasert of Thailand will contest the singles final in the ITF Futures tournament.
'He has injured his knee tendon. It is not serious and he will be fit to play in the Davis Cup,' Prakash's father Vijay Amritraj said.
The seventh seed stagved off a late fightback from the Delhi girl to advance to the quarter-finals in the ITF Futures tournament.
Prakash Amritraj retired hurt while trailing Australian Sadik Kadir in the ITF Futures tournament in Jakarta.
Sania Mirza and Anna Tchakvetadze of Russia went down 1-6, 6-2, 3-6 to Ana Ivanovic of Yugoslavia and Alla Kudryavtseva of Russia.
The Indian ace defeated Bardina of Russia in straight sets in the US $25,000 ITF women's tournament in Lagos, Nigeria.
The victory earned Bopanna a meeting with Russia's Dmitri Vlasov in the f inal of the ITF Futures tournament.
The unseeded Indian ace whipped Vitali Chevts of Belarus to set up a meeting with fifth seed Todor Enev of Bulgaria in the ITF Futures tournament.
The up-and-coming Hyderabadi lass extended second seed Jennifer Schmidt of Austria before losing in the NECC-ITF women's tournament.\n\n\n\n\n\n\n\n
In another match, German qualifier Varana Marie Beller crushed eighth seed Sonal Phadke to move into the quarter-finals of the ITF women's tennis tournament.\n\n
The top seed overcame a poor first set to make it to the last eight in the ITF Masters.
The Israeli recovered after losing the first set to beat Ajay Ramaswami in the first round in the ITF Masters tournament.
He will meet Indonesia's Prima Simpatiaji in the final of the ITF Satellite tournament.
The promising Indian junior wasted two match-points and went down in the second round in the ITF Satellite tournament.
Prakash Amritraj rallied to edge past Eliran Dooyev of Israel Mustafa Ghouse ousted Ajay Ramaswami in the ITF Satellite tournament.
The top seed in the ITF Satellite tournament was beaten by Takeshi Itho.
Both posted contrasting victories in the ITF Satellite tennis tournament.
The posted contrasting victories over Liza Pereira and Shruti dhawan in the semis of the ITF Masters.
The semi-final line-up for the ITF Masters is: Lakhani vs Shruti Dhawan; Ankita Bhambri vs Liza Pereira.
The second seed defeated Sarah Raab of Germany in a tough second round match.
She joins Somdev Varman, who got a berth in the boys' draw.\n\n