Following is the list of few Institutes located in Delhi for Language Courses which you are looking for .
Instituto Hispania
Block D Hauz Khas Rd, Block E, Hauz Khas, New Delhi, DL 110016 ‎
011 2696 8016 ‎•

Bharti Institute of Language
Shop No:732, Block M, Mangolpuri, New Delhi, Delhi 110083 ‎
097 18 717237

Swiss Institute of Language
Opposite Govt Primary School, Near Reliance Tower, Pratap Vihar, Kirari Extension, Street No 4, Street No 4, New Delhi, DL 110041 ‎
098 68 602873 ‎

Globibo India
New Delhi, 2/F, Elegance, Jasola District Centre, Old Mathura Rd, New Delhi, Delhi 110025 ‎

Cosmolingua Institute of Foreign Languages
105, Sector 8, dwarka, bagdola, New Delhi, Delhi 110075 ‎
011 3130 5222 ‎•

Cambridge Institute of Professional Studies
C 9/8, 2nd Floor, Near Rohini East Metro Station, Sector 7C, Rohini, New Delhi, Delhi, 110085 ‎
092 12 505012 (Mobile) ‎

Indian Institute of Language Style
E-23, 1st Floor, Simapuri Rd, Dilshad Colony New Simapuri, Dilshad Garden, New Delhi, Delhi 110095 ‎
098 10 719849 (Mobile) ‎

Indian Institute of Languages
Uttam Nagar, Chanakya Place I, New Delhi, Delhi 110046 ‎
075 03 432037 (Mobile) ‎